257060823 has 16 divisors (see below), whose sum is σ = 361267200. Its totient is φ = 162138240.

The previous prime is 257060821. The next prime is 257060831. The reversal of 257060823 is 328060752.

It is not a de Polignac number, because 257060823 - 2¹ = 257060821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257060821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47658 + ... + 52776.

It is an arithmetic number, because the mean of its divisors is an integer number (22579200).

Almost surely, 2^257060823 is an apocalyptic number.

257060823 is a deficient number, since it is larger than the sum of its proper divisors (104206377).

257060823 is a wasteful number, since it uses less digits than its factorization.

257060823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 257060823 is about 16033.1164469045. The cubic root of 257060823 is about 635.8362702027.

The spelling of 257060823 in words is "two hundred fifty-seven million, sixty thousand, eight hundred twenty-three".