25389725500 has 48 divisors (see below), whose sum is σ = 55741690368. Its totient is φ = 10102680000.

The previous prime is 25389725483. The next prime is 25389725503. The reversal of 25389725500 is 552798352.

It is a hoax number, since the sum of its digits (46) 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 (25389725503) 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, 37431 + ... + 228430.

It is an arithmetic number, because the mean of its divisors is an integer number (1161285216).

Almost surely, 2^25389725500 is an apocalyptic number.

25389725500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25389725500 is an abundant number, since it is smaller than the sum of its proper divisors (30351964868).

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

25389725500 is a wasteful number, since it uses less digits than its factorization.

25389725500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266071 (or 266059 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 25389725500 in words is "twenty-five billion, three hundred eighty-nine million, seven hundred twenty-five thousand, five hundred".