25620634120 has 32 divisors (see below), whose sum is σ = 57663880920. Its totient is φ = 10245150720.

The previous prime is 25620634111. The next prime is 25620634121. The reversal of 25620634120 is 2143602652.

It can be written as a sum of positive squares in 4 ways, for example, as 21341119396 + 4279514724 = 146086^2 + 65418^2 .

It is not an unprimeable number, because it can be changed into a prime (25620634121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39154 + ... + 229726.

Almost surely, 2^25620634120 is an apocalyptic number.

25620634120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25620634120 is an abundant number, since it is smaller than the sum of its proper divisors (32043246800).

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

25620634120 is a wasteful number, since it uses less digits than its factorization.

25620634120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193945 (or 193941 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 25620634120 in words is "twenty-five billion, six hundred twenty million, six hundred thirty-four thousand, one hundred twenty".