85613057 has 2 divisors, whose sum is σ = 85613058. Its totient is φ = 85613056.

The previous prime is 85613053. The next prime is 85613083. The reversal of 85613057 is 75031658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 13719616 = 8479^2 + 3704^2 .

It is a cyclic number.

It is not a de Polignac number, because 85613057 - 2² = 85613053 is a prime.

It is not a weakly prime, because it can be changed into another prime (85613053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42806528 + 42806529.

It is an arithmetic number, because the mean of its divisors is an integer number (42806529).

Almost surely, 2^85613057 is an apocalyptic number.

It is an amenable number.

85613057 is a deficient number, since it is larger than the sum of its proper divisors (1).

85613057 is an equidigital number, since it uses as much as digits as its factorization.

85613057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 85613057 is about 9252.7324072406. The cubic root of 85613057 is about 440.7374976707.

The spelling of 85613057 in words is "eighty-five million, six hundred thirteen thousand, fifty-seven".