25166131533252 has 60 divisors (see below), whose sum is σ = 66867751081516. Its totient is φ = 8251190660160.

The previous prime is 25166131533247. The next prime is 25166131533289. The reversal of 25166131533252 is 25233513166152.

25166131533252 is a `hidden beast` number, since 2 + 5 + 1 + 6 + 6 + 1 + 315 + 3 + 325 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 783235620036 + 24382895913216 = 885006^2 + 4937904^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25166131533198 and 25166131533207.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 636646183 + ... + 636685710.

Almost surely, 2^{25166131533252} is an apocalyptic number.

It is an amenable number.

25166131533252 is an abundant number, since it is smaller than the sum of its proper divisors (41701619548264).

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

25166131533252 is a wasteful number, since it uses less digits than its factorization.

25166131533252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273331970 (or 1273331959 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The spelling of 25166131533252 in words is "twenty-five trillion, one hundred sixty-six billion, one hundred thirty-one million, five hundred thirty-three thousand, two hundred fifty-two".