257989083 has 16 divisors (see below), whose sum is σ = 377210496. Its totient is φ = 155543040.

The previous prime is 257989073. The next prime is 257989103. The reversal of 257989083 is 380989752.

It is not a de Polignac number, because 257989083 - 2⁵ = 257989051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257989073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13885 + ... + 26622.

It is an arithmetic number, because the mean of its divisors is an integer number (23575656).

Almost surely, 2^257989083 is an apocalyptic number.

257989083 is a deficient number, since it is larger than the sum of its proper divisors (119221413).

257989083 is a wasteful number, since it uses less digits than its factorization.

257989083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40714.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 257989083 is about 16062.0385692477. The cubic root of 257989083 is about 636.6006967576.

The spelling of 257989083 in words is "two hundred fifty-seven million, nine hundred eighty-nine thousand, eighty-three".