80570531 has 4 divisors (see below), whose sum is σ = 85309992. Its totient is φ = 75831072.

The previous prime is 80570527. The next prime is 80570533. The reversal of 80570531 is 13507508.

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 80570531 - 2² = 80570527 is a prime.

It is a super-2 number, since 2×80570531² = 12983220931243922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80570494 and 80570503.

It is not an unprimeable number, because it can be changed into a prime (80570533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2369705 + ... + 2369738.

It is an arithmetic number, because the mean of its divisors is an integer number (21327498).

Almost surely, 2^80570531 is an apocalyptic number.

80570531 is a deficient number, since it is larger than the sum of its proper divisors (4739461).

80570531 is a wasteful number, since it uses less digits than its factorization.

80570531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739460.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 80570531 is about 8976.1089008545. The cubic root of 80570531 is about 431.9088224213.

The spelling of 80570531 in words is "eighty million, five hundred seventy thousand, five hundred thirty-one".