25105995072 has 84 divisors (see below), whose sum is σ = 74443292820. Its totient is φ = 8080084992.

The previous prime is 25105995067. The next prime is 25105995073. The reversal of 25105995072 is 27059950152.

25105995072 is a `hidden beast` number, since 2 + 5 + 1 + 0 + 599 + 50 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19303212096 + 5802782976 = 138936^2 + 76176^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25105995073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734793 + ... + 768200.

Almost surely, 2^25105995072 is an apocalyptic number.

It is an amenable number.

25105995072 is an abundant number, since it is smaller than the sum of its proper divisors (49337297748).

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

25105995072 is a wasteful number, since it uses less digits than its factorization.

25105995072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503040 (or 1503027 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The spelling of 25105995072 in words is "twenty-five billion, one hundred five million, nine hundred ninety-five thousand, seventy-two".