257453632 has 28 divisors (see below), whose sum is σ = 511423920. Its totient is φ = 128590976.

The previous prime is 257453621. The next prime is 257453657. The reversal of 257453632 is 236354752.

It is a junction number, because it is equal to n+sod(n) for n = 257453591 and 257453600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89919 + ... + 92737.

It is an arithmetic number, because the mean of its divisors is an integer number (18265140).

Almost surely, 2^257453632 is an apocalyptic number.

It is an amenable number.

257453632 is a deficient number, since it is larger than the sum of its proper divisors (253970288).

257453632 is a wasteful number, since it uses less digits than its factorization.

257453632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258 (or 4248 counting only the distinct ones).

The product of its digits is 151200, while the sum is 37.

The square root of 257453632 is about 16045.3616973878. The cubic root of 257453632 is about 636.1599745252.

The spelling of 257453632 in words is "two hundred fifty-seven million, four hundred fifty-three thousand, six hundred thirty-two".