2512657 has 4 divisors (see below), whose sum is σ = 2871616. Its totient is φ = 2153700.

The previous prime is 2512649. The next prime is 2512661. The reversal of 2512657 is 7562152.

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 2512657 - 2³ = 2512649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512637) 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, 179469 + ... + 179482.

It is an arithmetic number, because the mean of its divisors is an integer number (717904).

2^2512657 is an apocalyptic number.

It is an amenable number.

2512657 is a deficient number, since it is larger than the sum of its proper divisors (358959).

2512657 is an equidigital number, since it uses as much as digits as its factorization.

2512657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358958.

The product of its digits is 4200, while the sum is 28.

The square root of 2512657 is about 1585.1362717445. The cubic root of 2512657 is about 135.9495379395.

The spelling of 2512657 in words is "two million, five hundred twelve thousand, six hundred fifty-seven".