257193054 has 24 divisors (see below), whose sum is σ = 576468360. Its totient is φ = 82774608.

The previous prime is 257193049. The next prime is 257193059. The reversal of 257193054 is 450391752.

257193054 is a `hidden beast` number, since 2 + 571 + 9 + 30 + 54 = 666.

It is an interprime number because it is at equal distance from previous prime (257193049) and next prime (257193059).

It is a super-2 number, since 2×257193054² = 132296534051693832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257193059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245832 + ... + 246875.

It is an arithmetic number, because the mean of its divisors is an integer number (24019515).

Almost surely, 2^257193054 is an apocalyptic number.

257193054 is an abundant number, since it is smaller than the sum of its proper divisors (319275306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257193054 is a wasteful number, since it uses less digits than its factorization.

257193054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492744 (or 492741 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 257193054 is about 16037.2396003801. The cubic root of 257193054 is about 635.9452753436.

The spelling of 257193054 in words is "two hundred fifty-seven million, one hundred ninety-three thousand, fifty-four".