25557980284180 has 48 divisors (see below), whose sum is σ = 53712456618240. Its totient is φ = 10215442598400.

The previous prime is 25557980284091. The next prime is 25557980284181. The reversal of 25557980284180 is 8148208975552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25557980284181) 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, 171327825 + ... + 171476935.

It is an arithmetic number, because the mean of its divisors is an integer number (1119009512880).

Almost surely, 2^{25557980284180} is an apocalyptic number.

25557980284180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25557980284180 is an abundant number, since it is smaller than the sum of its proper divisors (28154476334060).

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

25557980284180 is a wasteful number, since it uses less digits than its factorization.

25557980284180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155560 (or 155558 counting only the distinct ones).

The product of its (nonzero) digits is 64512000, while the sum is 64.

The spelling of 25557980284180 in words is "twenty-five trillion, five hundred fifty-seven billion, nine hundred eighty million, two hundred eighty-four thousand, one hundred eighty".