539501957 has 2 divisors, whose sum is σ = 539501958. Its totient is φ = 539501956.

The previous prime is 539501939. The next prime is 539502059. The reversal of 539501957 is 759105935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512524321 + 26977636 = 22639^2 + 5194^2 .

It is a cyclic number.

It is not a de Polignac number, because 539501957 - 2²⁰ = 538453381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539501917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269750978 + 269750979.

It is an arithmetic number, because the mean of its divisors is an integer number (269750979).

Almost surely, 2^539501957 is an apocalyptic number.

It is an amenable number.

539501957 is a deficient number, since it is larger than the sum of its proper divisors (1).

539501957 is an equidigital number, since it uses as much as digits as its factorization.

539501957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 212625, while the sum is 44.

The square root of 539501957 is about 23227.1814260792. The cubic root of 539501957 is about 814.0748567331.

The spelling of 539501957 in words is "five hundred thirty-nine million, five hundred one thousand, nine hundred fifty-seven".