257572230 has 32 divisors (see below), whose sum is σ = 625125600. Its totient is φ = 67913472.

The previous prime is 257572213. The next prime is 257572241. The reversal of 257572230 is 32275752.

It is a junction number, because it is equal to n+sod(n) for n = 257572191 and 257572200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45565 + ... + 50904.

It is an arithmetic number, because the mean of its divisors is an integer number (19535175).

Almost surely, 2^257572230 is an apocalyptic number.

257572230 is an abundant number, since it is smaller than the sum of its proper divisors (367553370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257572230 is a wasteful number, since it uses less digits than its factorization.

257572230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96568.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 257572230 is about 16049.0569816423. The cubic root of 257572230 is about 636.2576435280.

It can be divided in two parts, 2575722 and 30, that added together give a palindrome (2575752).

The spelling of 257572230 in words is "two hundred fifty-seven million, five hundred seventy-two thousand, two hundred thirty".