257163542 has 16 divisors (see below), whose sum is σ = 400632480. Its totient is φ = 123697728.

The previous prime is 257163527. The next prime is 257163563. The reversal of 257163542 is 245361752.

It is a super-2 number, since 2×257163542² = 132266174667971528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12938 + ... + 26109.

It is an arithmetic number, because the mean of its divisors is an integer number (25039530).

Almost surely, 2^257163542 is an apocalyptic number.

257163542 is a deficient number, since it is larger than the sum of its proper divisors (143468938).

257163542 is a wasteful number, since it uses less digits than its factorization.

257163542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39175.

The product of its digits is 50400, while the sum is 35.

The square root of 257163542 is about 16036.3194655133. The cubic root of 257163542 is about 635.9209502506.

The spelling of 257163542 in words is "two hundred fifty-seven million, one hundred sixty-three thousand, five hundred forty-two".