80557207 has 4 divisors (see below), whose sum is σ = 84797080. Its totient is φ = 76317336.

The previous prime is 80557199. The next prime is 80557219. The reversal of 80557207 is 70275508.

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 80557207 - 2³ = 80557199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80557307) 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, 2119908 + ... + 2119945.

It is an arithmetic number, because the mean of its divisors is an integer number (21199270).

Almost surely, 2^80557207 is an apocalyptic number.

80557207 is a deficient number, since it is larger than the sum of its proper divisors (4239873).

80557207 is a wasteful number, since it uses less digits than its factorization.

80557207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239872.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 80557207 is about 8975.3666777464. The cubic root of 80557207 is about 431.8850127631.

The spelling of 80557207 in words is "eighty million, five hundred fifty-seven thousand, two hundred seven".