257853233 has 8 divisors (see below), whose sum is σ = 287280000. Its totient is φ = 229424080.

The previous prime is 257853221. The next prime is 257853269. The reversal of 257853233 is 332358752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257853233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257853293) 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, 248858 + ... + 249891.

It is an arithmetic number, because the mean of its divisors is an integer number (35910000).

Almost surely, 2^257853233 is an apocalyptic number.

It is an amenable number.

257853233 is a deficient number, since it is larger than the sum of its proper divisors (29426767).

257853233 is a wasteful number, since it uses less digits than its factorization.

257853233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498807.

The product of its digits is 151200, while the sum is 38.

The square root of 257853233 is about 16057.8090971340. The cubic root of 257853233 is about 636.4889382964.

The spelling of 257853233 in words is "two hundred fifty-seven million, eight hundred fifty-three thousand, two hundred thirty-three".