25050050000 has 60 divisors (see below), whose sum is σ = 60664328172. Its totient is φ = 10020000000.

The previous prime is 25050049987. The next prime is 25050050033. The reversal of 25050050000 is 5005052.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 25012055104 + 37994896 = 158152^2 + 6164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200501 + ... + 300500.

Almost surely, 2^25050050000 is an apocalyptic number.

25050050000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25050050000 is an abundant number, since it is smaller than the sum of its proper divisors (35614278172).

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

25050050000 is an frugal number, since it uses more digits than its factorization.

25050050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501034 (or 501008 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 17.

Adding to 25050050000 its reverse (5005052), we get a palindrome (25055055052).

The spelling of 25050050000 in words is "twenty-five billion, fifty million, fifty thousand".