525621575272 has 8 divisors (see below), whose sum is σ = 985540453650. Its totient is φ = 262810787632.

The previous prime is 525621575249. The next prime is 525621575273. The reversal of 525621575272 is 272575126525.

It can be written as a sum of positive squares in only one way, i.e., 265507295076 + 260114280196 = 515274^2 + 510014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (525621575273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32851348447 + ... + 32851348462.

Almost surely, 2^525621575272 is an apocalyptic number.

It is an amenable number.

525621575272 is a deficient number, since it is larger than the sum of its proper divisors (459918878378).

525621575272 is a wasteful number, since it uses less digits than its factorization.

525621575272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65702696915 (or 65702696911 counting only the distinct ones).

The product of its digits is 2940000, while the sum is 49.

The spelling of 525621575272 in words is "five hundred twenty-five billion, six hundred twenty-one million, five hundred seventy-five thousand, two hundred seventy-two".