508493957 has 2 divisors, whose sum is σ = 508493958. Its totient is φ = 508493956.

The previous prime is 508493927. The next prime is 508493969. The reversal of 508493957 is 759394805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488144836 + 20349121 = 22094^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 508493957 - 2¹⁶ = 508428421 is a prime.

It is a super-2 number, since 2×508493957² = 517132208611035698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508493927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254246978 + 254246979.

It is an arithmetic number, because the mean of its divisors is an integer number (254246979).

Almost surely, 2^508493957 is an apocalyptic number.

It is an amenable number.

508493957 is a deficient number, since it is larger than the sum of its proper divisors (1).

508493957 is an equidigital number, since it uses as much as digits as its factorization.

508493957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 508493957 is about 22549.8105757011. The cubic root of 508493957 is about 798.1697518704.

The spelling of 508493957 in words is "five hundred eight million, four hundred ninety-three thousand, nine hundred fifty-seven".