25151385500 has 48 divisors (see below), whose sum is σ = 57318940224. Its totient is φ = 9623134400.

The previous prime is 25151385499. The next prime is 25151385509. The reversal of 25151385500 is 558315152.

It is a super-2 number, since 2×25151385500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25151385509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1082039 + ... + 1105038.

It is an arithmetic number, because the mean of its divisors is an integer number (1194144588).

Almost surely, 2^25151385500 is an apocalyptic number.

25151385500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25151385500 is an abundant number, since it is smaller than the sum of its proper divisors (32167554724).

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

25151385500 is a wasteful number, since it uses less digits than its factorization.

25151385500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187119 (or 2187107 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 25151385500 in words is "twenty-five billion, one hundred fifty-one million, three hundred eighty-five thousand, five hundred".