Search a number
50000005000000 = 265711909091

50000005000000 has 224 divisors, whose sum is σ = 135298111448448. Its totient is φ = 18181800000000.

The previous prime is 50000004999947. The next prime is 50000005000027. The reversal of 50000005000000 is 50000005.

Adding to 50000005000000 its reverse (50000005), we get a palindrome (50000055000005).

50000005000000 divided by its reverse (50000005) gives a 6-th power (1000000 = 106).

It can be divided in two parts, 5000000 and 5000000, that added together give a 7-th power (10000000 = 107).

50000005000000 is a nontrivial binomial coefficient, being equal to C(10000001, 2).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a Kaprekar number, because its square (2500000500000025000000000000) can be partitioned into two parts whose sum is 50000005000000.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54545455 + ... + 55454545.

Almost surely, 250000005000000 is an apocalyptic number.

50000005000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50000005000000 is the 10000000-th triangular number.

50000005000000 is the 3333334-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50000005000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67649055724224).

50000005000000 is an abundant number, since it is smaller than the sum of its proper divisors (85298106448448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50000005000000 is an frugal number, since it uses more digits than its factorization.

50000005000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909149 (or 909109 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 10.

The spelling of 50000005000000 in words is "fifty trillion, five million", and thus it is an aban number and an uban number.