88572521 has 4 divisors (see below), whose sum is σ = 88618452. Its totient is φ = 88526592.

The previous prime is 88572493. The next prime is 88572551. The reversal of 88572521 is 12527588.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71639296 + 16933225 = 8464^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 88572521 - 2⁶ = 88572457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88572551) 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, 19940 + ... + 23973.

It is an arithmetic number, because the mean of its divisors is an integer number (22154613).

Almost surely, 2^88572521 is an apocalyptic number.

It is an amenable number.

88572521 is a deficient number, since it is larger than the sum of its proper divisors (45931).

88572521 is a wasteful number, since it uses less digits than its factorization.

88572521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45930.

The product of its digits is 44800, while the sum is 38.

The square root of 88572521 is about 9411.2975194709. The cubic root of 88572521 is about 445.7585362705.

The spelling of 88572521 in words is "eighty-eight million, five hundred seventy-two thousand, five hundred twenty-one".