80558136 has 24 divisors (see below), whose sum is σ = 218178480. Its totient is φ = 26852688.

The previous prime is 80558131. The next prime is 80558147. The reversal of 80558136 is 63185508.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×80558136² = 12979226551588992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80558136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80558131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559360 + ... + 559503.

It is an arithmetic number, because the mean of its divisors is an integer number (9090770).

Almost surely, 2^80558136 is an apocalyptic number.

It is an amenable number.

80558136 is an abundant number, since it is smaller than the sum of its proper divisors (137620344).

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

80558136 is a wasteful number, since it uses less digits than its factorization.

80558136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118875 (or 1118868 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 80558136 is about 8975.4184303574. The cubic root of 80558136 is about 431.8866729483.

The spelling of 80558136 in words is "eighty million, five hundred fifty-eight thousand, one hundred thirty-six".