88566521 has 4 divisors (see below), whose sum is σ = 88585344. Its totient is φ = 88547700.

The previous prime is 88566503. The next prime is 88566523. The reversal of 88566521 is 12566588.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88566521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88566523) 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, 4676 + ... + 14106.

It is an arithmetic number, because the mean of its divisors is an integer number (22146336).

Almost surely, 2^88566521 is an apocalyptic number.

It is an amenable number.

88566521 is a deficient number, since it is larger than the sum of its proper divisors (18823).

88566521 is an equidigital number, since it uses as much as digits as its factorization.

88566521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18822.

The product of its digits is 115200, while the sum is 41.

The square root of 88566521 is about 9410.9787482493. The cubic root of 88566521 is about 445.7484706520.

The spelling of 88566521 in words is "eighty-eight million, five hundred sixty-six thousand, five hundred twenty-one".