25151857504 has 48 divisors (see below), whose sum is σ = 49764078000. Its totient is φ = 12513521664.

The previous prime is 25151857469. The next prime is 25151857519. The reversal of 25151857504 is 40575815152.

It is a super-2 number, since 2×25151857504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6134047 + ... + 6138145.

It is an arithmetic number, because the mean of its divisors is an integer number (1036751625).

Almost surely, 2^25151857504 is an apocalyptic number.

It is an amenable number.

25151857504 is a deficient number, since it is larger than the sum of its proper divisors (24612220496).

25151857504 is a wasteful number, since it uses less digits than its factorization.

25151857504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015 (or 5007 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 43.

The spelling of 25151857504 in words is "twenty-five billion, one hundred fifty-one million, eight hundred fifty-seven thousand, five hundred four".