88564559 has 4 divisors (see below), whose sum is σ = 92415216. Its totient is φ = 84713904.

The previous prime is 88564547. The next prime is 88564561. The reversal of 88564559 is 95546588.

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

It is a cyclic number.

It is not a de Polignac number, because 88564559 - 2²⁴ = 71787343 is a prime.

It is a super-2 number, since 2×88564559² = 15687362221728962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88564159) 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, 1925294 + ... + 1925339.

It is an arithmetic number, because the mean of its divisors is an integer number (23103804).

Almost surely, 2^88564559 is an apocalyptic number.

88564559 is a deficient number, since it is larger than the sum of its proper divisors (3850657).

88564559 is a wasteful number, since it uses less digits than its factorization.

88564559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850656.

The product of its digits is 1728000, while the sum is 50.

The square root of 88564559 is about 9410.8745077171. The cubic root of 88564559 is about 445.7451790961.

The spelling of 88564559 in words is "eighty-eight million, five hundred sixty-four thousand, five hundred fifty-nine".