25320555012188 has 12 divisors (see below), whose sum is σ = 44311091375712. Its totient is φ = 12660243190560.

The previous prime is 25320555012187. The next prime is 25320555012197. The reversal of 25320555012188 is 88121055502352.

It is a super-2 number, since 2×25320555012188² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25320555012187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6881345 + ... + 9899192.

It is an arithmetic number, because the mean of its divisors is an integer number (3692590947976).

Almost surely, 2^{25320555012188} is an apocalyptic number.

It is an amenable number.

25320555012188 is a deficient number, since it is larger than the sum of its proper divisors (18990536363524).

25320555012188 is a wasteful number, since it uses less digits than its factorization.

25320555012188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157772 (or 17157770 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 47.

The spelling of 25320555012188 in words is "twenty-five trillion, three hundred twenty billion, five hundred fifty-five million, twelve thousand, one hundred eighty-eight".