2572657 has 4 divisors (see below), whose sum is σ = 2708080. Its totient is φ = 2437236.

The previous prime is 2572651. The next prime is 2572663. The reversal of 2572657 is 7562752.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (2572651) and next prime (2572663).

It is a cyclic number.

It is not a de Polignac number, because 2572657 - 2³ = 2572649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2572651) 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, 67683 + ... + 67720.

It is an arithmetic number, because the mean of its divisors is an integer number (677020).

2^2572657 is an apocalyptic number.

It is an amenable number.

2572657 is a deficient number, since it is larger than the sum of its proper divisors (135423).

2572657 is a wasteful number, since it uses less digits than its factorization.

2572657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135422.

The product of its digits is 29400, while the sum is 34.

The square root of 2572657 is about 1603.9504356432. The cubic root of 2572657 is about 137.0231548410.

The spelling of 2572657 in words is "two million, five hundred seventy-two thousand, six hundred fifty-seven".