2257516245 has 16 divisors (see below), whose sum is σ = 3657749760. Its totient is φ = 1188767424.

The previous prime is 2257516237. The next prime is 2257516249. The reversal of 2257516245 is 5426157522.

It is not a de Polignac number, because 2257516245 - 2³ = 2257516237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257516249) 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, 951354 + ... + 953723.

It is an arithmetic number, because the mean of its divisors is an integer number (228609360).

Almost surely, 2^2257516245 is an apocalyptic number.

It is an amenable number.

2257516245 is a deficient number, since it is larger than the sum of its proper divisors (1400233515).

2257516245 is a wasteful number, since it uses less digits than its factorization.

2257516245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905164.

The product of its digits is 168000, while the sum is 39.

The square root of 2257516245 is about 47513.3270251621. The cubic root of 2257516245 is about 1311.8281964225.

The spelling of 2257516245 in words is "two billion, two hundred fifty-seven million, five hundred sixteen thousand, two hundred forty-five".