257360533 has 2 divisors, whose sum is σ = 257360534. Its totient is φ = 257360532.

The previous prime is 257360513. The next prime is 257360557. The reversal of 257360533 is 335063752.

257360533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230341329 + 27019204 = 15177^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 257360533 - 2¹⁷ = 257229461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257360503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128680266 + 128680267.

It is an arithmetic number, because the mean of its divisors is an integer number (128680267).

Almost surely, 2^257360533 is an apocalyptic number.

It is an amenable number.

257360533 is a deficient number, since it is larger than the sum of its proper divisors (1).

257360533 is an equidigital number, since it uses as much as digits as its factorization.

257360533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 34.

The square root of 257360533 is about 16042.4603162981. The cubic root of 257360533 is about 636.0832836956.

The spelling of 257360533 in words is "two hundred fifty-seven million, three hundred sixty thousand, five hundred thirty-three".