257502941 has 2 divisors, whose sum is σ = 257502942. Its totient is φ = 257502940.

The previous prime is 257502937. The next prime is 257502997. The reversal of 257502941 is 149205752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157602916 + 99900025 = 12554^2 + 9995^2 .

It is a cyclic number.

It is not a de Polignac number, because 257502941 - 2² = 257502937 is a prime.

It is a super-3 number, since 3×257502941³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257502911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128751470 + 128751471.

It is an arithmetic number, because the mean of its divisors is an integer number (128751471).

Almost surely, 2^257502941 is an apocalyptic number.

It is an amenable number.

257502941 is a deficient number, since it is larger than the sum of its proper divisors (1).

257502941 is an equidigital number, since it uses as much as digits as its factorization.

257502941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 257502941 is about 16046.8981737905. The cubic root of 257502941 is about 636.2005856048.

The spelling of 257502941 in words is "two hundred fifty-seven million, five hundred two thousand, nine hundred forty-one".