257870852 has 12 divisors (see below), whose sum is σ = 456986880. Its totient is φ = 127303176.

The previous prime is 257870849. The next prime is 257870897. The reversal of 257870852 is 258078752.

257870852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×257870852² = 132994752622411808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407708 + ... + 408339.

It is an arithmetic number, because the mean of its divisors is an integer number (38082240).

Almost surely, 2^257870852 is an apocalyptic number.

It is an amenable number.

257870852 is a deficient number, since it is larger than the sum of its proper divisors (199116028).

257870852 is a wasteful number, since it uses less digits than its factorization.

257870852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816130 (or 816128 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 257870852 is about 16058.3576993415. The cubic root of 257870852 is about 636.5034349709.

The spelling of 257870852 in words is "two hundred fifty-seven million, eight hundred seventy thousand, eight hundred fifty-two".