80523564 has 36 divisors (see below), whose sum is σ = 206525592. Its totient is φ = 24400640.

The previous prime is 80523557. The next prime is 80523593. The reversal of 80523564 is 46532508.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26277 + ... + 29180.

It is an arithmetic number, because the mean of its divisors is an integer number (5736822).

Almost surely, 2^80523564 is an apocalyptic number.

It is an amenable number.

80523564 is an abundant number, since it is smaller than the sum of its proper divisors (126002028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80523564 is a wasteful number, since it uses less digits than its factorization.

80523564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55486 (or 55473 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 80523564 is about 8973.4922967594. The cubic root of 80523564 is about 431.8248818690.

The spelling of 80523564 in words is "eighty million, five hundred twenty-three thousand, five hundred sixty-four".