99525071572 has 6 divisors (see below), whose sum is σ = 174168875258. Its totient is φ = 49762535784.

The previous prime is 99525071561. The next prime is 99525071599. The reversal of 99525071572 is 27517052599.

It can be written as a sum of positive squares in only one way, i.e., 59889836176 + 39635235396 = 244724^2 + 199086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12440633943 + ... + 12440633950.

Almost surely, 2^99525071572 is an apocalyptic number.

It is an amenable number.

99525071572 is a deficient number, since it is larger than the sum of its proper divisors (74643803686).

99525071572 is a wasteful number, since it uses less digits than its factorization.

99525071572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24881267897 (or 24881267895 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 52.

The spelling of 99525071572 in words is "ninety-nine billion, five hundred twenty-five million, seventy-one thousand, five hundred seventy-two".