503125657 has 2 divisors, whose sum is σ = 503125658. Its totient is φ = 503125656.

The previous prime is 503125639. The next prime is 503125673. The reversal of 503125657 is 756521305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491996761 + 11128896 = 22181^2 + 3336^2 .

It is a cyclic number.

It is not a de Polignac number, because 503125657 - 2¹⁹ = 502601369 is a prime.

It is not a weakly prime, because it can be changed into another prime (503122657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251562828 + 251562829.

It is an arithmetic number, because the mean of its divisors is an integer number (251562829).

Almost surely, 2^503125657 is an apocalyptic number.

It is an amenable number.

503125657 is a deficient number, since it is larger than the sum of its proper divisors (1).

503125657 is an equidigital number, since it uses as much as digits as its factorization.

503125657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 503125657 is about 22430.4627014246. The cubic root of 503125657 is about 795.3509819773.

The spelling of 503125657 in words is "five hundred three million, one hundred twenty-five thousand, six hundred fifty-seven".