80575500 has 48 divisors (see below), whose sum is σ = 234640224. Its totient is φ = 21486400.

The previous prime is 80575493. The next prime is 80575511. The reversal of 80575500 is 557508.

It is a happy number.

It is a super-2 number, since 2×80575500² = 12984822400500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25359 + ... + 28358.

It is an arithmetic number, because the mean of its divisors is an integer number (4888338).

Almost surely, 2^80575500 is an apocalyptic number.

It is an amenable number.

80575500 is an abundant number, since it is smaller than the sum of its proper divisors (154064724).

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

80575500 is a wasteful number, since it uses less digits than its factorization.

80575500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53739 (or 53727 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 80575500 is about 8976.3856869009. The cubic root of 80575500 is about 431.9177012293.

The spelling of 80575500 in words is "eighty million, five hundred seventy-five thousand, five hundred".