257163322 has 32 divisors (see below), whose sum is σ = 435859200. Its totient is φ = 112907520.

The previous prime is 257163317. The next prime is 257163323. The reversal of 257163322 is 223361752.

It is a super-2 number, since 2×257163322² = 132265948364151368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257163323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117922 + ... + 120082.

It is an arithmetic number, because the mean of its divisors is an integer number (13620600).

Almost surely, 2^257163322 is an apocalyptic number.

257163322 is a deficient number, since it is larger than the sum of its proper divisors (178695878).

257163322 is a wasteful number, since it uses less digits than its factorization.

257163322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398.

The product of its digits is 15120, while the sum is 31.

The square root of 257163322 is about 16036.3126060825. The cubic root of 257163322 is about 635.9207689099.

The spelling of 257163322 in words is "two hundred fifty-seven million, one hundred sixty-three thousand, three hundred twenty-two".