52512613 has 2 divisors, whose sum is σ = 52512614. Its totient is φ = 52512612.

The previous prime is 52512587. The next prime is 52512617. The reversal of 52512613 is 31621525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52446564 + 66049 = 7242^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 52512613 - 2⁹ = 52512101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52512617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26256306 + 26256307.

It is an arithmetic number, because the mean of its divisors is an integer number (26256307).

Almost surely, 2^52512613 is an apocalyptic number.

It is an amenable number.

52512613 is a deficient number, since it is larger than the sum of its proper divisors (1).

52512613 is an equidigital number, since it uses as much as digits as its factorization.

52512613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 52512613 is about 7246.5587005143. The cubic root of 52512613 is about 374.4736033559.

The spelling of 52512613 in words is "fifty-two million, five hundred twelve thousand, six hundred thirteen".