257831054 has 16 divisors (see below), whose sum is σ = 430859520. Its totient is φ = 114895200.

The previous prime is 257831051. The next prime is 257831087. The reversal of 257831054 is 450138752.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257831051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170222 + ... + 171729.

It is an arithmetic number, because the mean of its divisors is an integer number (26928720).

Almost surely, 2^257831054 is an apocalyptic number.

257831054 is a deficient number, since it is larger than the sum of its proper divisors (173028466).

257831054 is a wasteful number, since it uses less digits than its factorization.

257831054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341995.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 257831054 is about 16057.1184837131. The cubic root of 257831054 is about 636.4706887767.

The spelling of 257831054 in words is "two hundred fifty-seven million, eight hundred thirty-one thousand, fifty-four".