80570513 has 2 divisors, whose sum is σ = 80570514. Its totient is φ = 80570512.

The previous prime is 80570467. The next prime is 80570527. The reversal of 80570513 is 31507508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55249489 + 25321024 = 7433^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 80570513 - 2²⁴ = 63793297 is a prime.

It is not a weakly prime, because it can be changed into another prime (80570533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40285256 + 40285257.

It is an arithmetic number, because the mean of its divisors is an integer number (40285257).

Almost surely, 2^80570513 is an apocalyptic number.

It is an amenable number.

80570513 is a deficient number, since it is larger than the sum of its proper divisors (1).

80570513 is an equidigital number, since it uses as much as digits as its factorization.

80570513 is an evil number, because the sum of its binary digits is even.

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

The square root of 80570513 is about 8976.1078981928. The cubic root of 80570513 is about 431.9087902575.

The spelling of 80570513 in words is "eighty million, five hundred seventy thousand, five hundred thirteen".