25837497072 has 40 divisors (see below), whose sum is σ = 74163187280. Its totient is φ = 8612498880.

The previous prime is 25837497019. The next prime is 25837497079. The reversal of 25837497072 is 27079473852.

25837497072 is a `hidden beast` number, since 2 + 5 + 83 + 7 + 497 + 0 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25837497079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29904079 + ... + 29904942.

It is an arithmetic number, because the mean of its divisors is an integer number (1854079682).

Almost surely, 2^25837497072 is an apocalyptic number.

It is an amenable number.

25837497072 is an abundant number, since it is smaller than the sum of its proper divisors (48325690208).

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

25837497072 is a wasteful number, since it uses less digits than its factorization.

25837497072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59809038 (or 59809026 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 25837497072 in words is "twenty-five billion, eight hundred thirty-seven million, four hundred ninety-seven thousand, seventy-two".