625537793 has 2 divisors, whose sum is σ = 625537794. Its totient is φ = 625537792.

The previous prime is 625537789. The next prime is 625537841. The reversal of 625537793 is 397735526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404331664 + 221206129 = 20108^2 + 14873^2 .

It is a cyclic number.

It is not a de Polignac number, because 625537793 - 2² = 625537789 is a prime.

It is not a weakly prime, because it can be changed into another prime (625537723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312768896 + 312768897.

It is an arithmetic number, because the mean of its divisors is an integer number (312768897).

Almost surely, 2^625537793 is an apocalyptic number.

It is an amenable number.

625537793 is a deficient number, since it is larger than the sum of its proper divisors (1).

625537793 is an equidigital number, since it uses as much as digits as its factorization.

625537793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 47.

The square root of 625537793 is about 25010.7535472244. The cubic root of 625537793 is about 855.2331331928.

The spelling of 625537793 in words is "six hundred twenty-five million, five hundred thirty-seven thousand, seven hundred ninety-three".