625334537 has 2 divisors, whose sum is σ = 625334538. Its totient is φ = 625334536.

The previous prime is 625334513. The next prime is 625334551. The reversal of 625334537 is 735433526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602015296 + 23319241 = 24536^2 + 4829^2 .

It is a cyclic number.

It is not a de Polignac number, because 625334537 - 2⁶ = 625334473 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625334537.

It is not a weakly prime, because it can be changed into another prime (625339537) 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 as a sum of consecutive naturals, namely, 312667268 + 312667269.

It is an arithmetic number, because the mean of its divisors is an integer number (312667269).

Almost surely, 2^625334537 is an apocalyptic number.

It is an amenable number.

625334537 is a deficient number, since it is larger than the sum of its proper divisors (1).

625334537 is an equidigital number, since it uses as much as digits as its factorization.

625334537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 38.

The square root of 625334537 is about 25006.6898449195. The cubic root of 625334537 is about 855.1404928553.

The spelling of 625334537 in words is "six hundred twenty-five million, three hundred thirty-four thousand, five hundred thirty-seven".