25325534100 has 72 divisors (see below), whose sum is σ = 77585534208. Its totient is φ = 6356211200.

The previous prime is 25325534089. The next prime is 25325534137. The reversal of 25325534100 is 143552352.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 2477796 + ... + 2487995.

It is an arithmetic number, because the mean of its divisors is an integer number (1077576864).

Almost surely, 2^25325534100 is an apocalyptic number.

25325534100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25325534100 is an abundant number, since it is smaller than the sum of its proper divisors (52260000108).

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

25325534100 is a wasteful number, since it uses less digits than its factorization.

25325534100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965825 (or 4965818 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 25325534100 in words is "twenty-five billion, three hundred twenty-five million, five hundred thirty-four thousand, one hundred".