25007956040 has 16 divisors (see below), whose sum is σ = 56267901180. Its totient is φ = 10003182400.

The previous prime is 25007955991. The next prime is 25007956069. The reversal of 25007956040 is 4065970052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23060852164 + 1947103876 = 151858^2 + 44126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25007955985 and 25007956003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312599411 + ... + 312599490.

Almost surely, 2^25007956040 is an apocalyptic number.

25007956040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25007956040 is an abundant number, since it is smaller than the sum of its proper divisors (31259945140).

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

25007956040 is a wasteful number, since it uses less digits than its factorization.

25007956040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625198912 (or 625198908 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 25007956040 in words is "twenty-five billion, seven million, nine hundred fifty-six thousand, forty".