2257524321 has 8 divisors (see below), whose sum is σ = 3241573440. Its totient is φ = 1389245712.

The previous prime is 2257524317. The next prime is 2257524323. The reversal of 2257524321 is 1234257522.

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

It is not a de Polignac number, because 2257524321 - 2² = 2257524317 is a prime.

It is a super-2 number, since 2×2257524321² = 10192832119813022082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2257524323) 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, 28942581 + ... + 28942658.

It is an arithmetic number, because the mean of its divisors is an integer number (405196680).

Almost surely, 2^2257524321 is an apocalyptic number.

It is an amenable number.

2257524321 is a deficient number, since it is larger than the sum of its proper divisors (984049119).

2257524321 is a wasteful number, since it uses less digits than its factorization.

2257524321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57885255.

The product of its digits is 33600, while the sum is 33.

The square root of 2257524321 is about 47513.4120117678. The cubic root of 2257524321 is about 1311.8297607246.

The spelling of 2257524321 in words is "two billion, two hundred fifty-seven million, five hundred twenty-four thousand, three hundred twenty-one".