25185288469980 has 96 divisors (see below), whose sum is σ = 74233232962560. Its totient is φ = 6362349845760.

The previous prime is 25185288469973. The next prime is 25185288470009. The reversal of 25185288469980 is 8996488258152.

It is a super-2 number, since 2×25185288469980² (a number of 28 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 31 ways as a sum of consecutive naturals, for example, 29581645 + ... + 30421115.

It is an arithmetic number, because the mean of its divisors is an integer number (773262843360).

Almost surely, 2^{25185288469980} is an apocalyptic number.

25185288469980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25185288469980 is an abundant number, since it is smaller than the sum of its proper divisors (49047944492580).

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

25185288469980 is a wasteful number, since it uses less digits than its factorization.

25185288469980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865819 (or 865817 counting only the distinct ones).

The product of its (nonzero) digits is 796262400, while the sum is 75.

The spelling of 25185288469980 in words is "twenty-five trillion, one hundred eighty-five billion, two hundred eighty-eight million, four hundred sixty-nine thousand, nine hundred eighty".