2257513 has 4 divisors (see below), whose sum is σ = 2330368. Its totient is φ = 2184660.

The previous prime is 2257511. The next prime is 2257529. The reversal of 2257513 is 3157522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2257513 - 2¹ = 2257511 is a prime.

It is a Duffinian number.

2257513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2257511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36381 + ... + 36442.

It is an arithmetic number, because the mean of its divisors is an integer number (582592).

2^2257513 is an apocalyptic number.

It is an amenable number.

2257513 is a deficient number, since it is larger than the sum of its proper divisors (72855).

2257513 is an equidigital number, since it uses as much as digits as its factorization.

2257513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72854.

The product of its digits is 2100, while the sum is 25.

The square root of 2257513 is about 1502.5022462546. The cubic root of 2257513 is about 131.1827567873.

Subtracting 2257513 from its reverse (3157522), we obtain a palindrome (900009).

The spelling of 2257513 in words is "two million, two hundred fifty-seven thousand, five hundred thirteen".