75570013 has 2 divisors, whose sum is σ = 75570014. Its totient is φ = 75570012.

The previous prime is 75569999. The next prime is 75570023. The reversal of 75570013 is 31007557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75568249 + 1764 = 8693^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 75570013 - 2²⁵ = 42015581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75570023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37785006 + 37785007.

It is an arithmetic number, because the mean of its divisors is an integer number (37785007).

Almost surely, 2^75570013 is an apocalyptic number.

It is an amenable number.

75570013 is a deficient number, since it is larger than the sum of its proper divisors (1).

75570013 is an equidigital number, since it uses as much as digits as its factorization.

75570013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 75570013 is about 8693.1014603535. The cubic root of 75570013 is about 422.7820098248.

The spelling of 75570013 in words is "seventy-five million, five hundred seventy thousand, thirteen".