80520051 has 8 divisors (see below), whose sum is σ = 110823424. Its totient is φ = 51948360.

The previous prime is 80520031. The next prime is 80520101. The reversal of 80520051 is 15002508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80520051 - 2⁵ = 80520019 is a prime.

It is a super-2 number, since 2×80520051² = 12966957226085202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80520031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432811 + ... + 432996.

It is an arithmetic number, because the mean of its divisors is an integer number (13852928).

Almost surely, 2^80520051 is an apocalyptic number.

80520051 is a deficient number, since it is larger than the sum of its proper divisors (30303373).

80520051 is a wasteful number, since it uses less digits than its factorization.

80520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865841.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 80520051 is about 8973.2965514353. The cubic root of 80520051 is about 431.8186020390.

Adding to 80520051 its reverse (15002508), we get a palindrome (95522559).

The spelling of 80520051 in words is "eighty million, five hundred twenty thousand, fifty-one".