257585283 has 6 divisors (see below), whose sum is σ = 372067644. Its totient is φ = 171723516.

The previous prime is 257585281. The next prime is 257585287. The reversal of 257585283 is 382585752.

257585283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 257585283 - 2¹ = 257585281 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (257585281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14310285 + ... + 14310302.

It is an arithmetic number, because the mean of its divisors is an integer number (62011274).

Almost surely, 2^257585283 is an apocalyptic number.

257585283 is a deficient number, since it is larger than the sum of its proper divisors (114482361).

257585283 is a wasteful number, since it uses less digits than its factorization.

257585283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28620593 (or 28620590 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 257585283 is about 16049.4636358976. The cubic root of 257585283 is about 636.2683912326.

The spelling of 257585283 in words is "two hundred fifty-seven million, five hundred eighty-five thousand, two hundred eighty-three".