25574731072 has 28 divisors (see below), whose sum is σ = 55363481856. Its totient is φ = 11624877440.

The previous prime is 25574731057. The next prime is 25574731157. The reversal of 25574731072 is 27013747552.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18163168 + ... + 18164575.

Almost surely, 2^25574731072 is an apocalyptic number.

25574731072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25574731072 is an abundant number, since it is smaller than the sum of its proper divisors (29788750784).

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

25574731072 is a wasteful number, since it uses less digits than its factorization.

25574731072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36327766 (or 36327756 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 43.

The spelling of 25574731072 in words is "twenty-five billion, five hundred seventy-four million, seven hundred thirty-one thousand, seventy-two".