50555000 has 40 divisors (see below), whose sum is σ = 118462080. Its totient is φ = 20220000.

The previous prime is 50554997. The next prime is 50555003. The reversal of 50555000 is 55505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50554997) and next prime (50555003).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50555003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (2961552).

Almost surely, 2^50555000 is an apocalyptic number.

50555000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50555000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59231040).

50555000 is an abundant number, since it is smaller than the sum of its proper divisors (67907080).

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

50555000 is a wasteful number, since it uses less digits than its factorization.

50555000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10137 (or 10118 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 50555000 is about 7110.2039351906. The cubic root of 50555000 is about 369.7612289523.

The spelling of 50555000 in words is "fifty million, five hundred fifty-five thousand".