257502063 has 16 divisors (see below), whose sum is σ = 422567936. Its totient is φ = 135825120.

The previous prime is 257502059. The next prime is 257502067. The reversal of 257502063 is 360205752.

It is an interprime number because it is at equal distance from previous prime (257502059) and next prime (257502067).

It is not a de Polignac number, because 257502063 - 2² = 257502059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 257502063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257502067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471343 + ... + 471888.

It is an arithmetic number, because the mean of its divisors is an integer number (26410496).

Almost surely, 2^257502063 is an apocalyptic number.

257502063 is a deficient number, since it is larger than the sum of its proper divisors (165065873).

257502063 is a wasteful number, since it uses less digits than its factorization.

257502063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943254.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 257502063 is about 16046.8708164552. The cubic root of 257502063 is about 636.1998625260.

The spelling of 257502063 in words is "two hundred fifty-seven million, five hundred two thousand, sixty-three".