2571257 has 8 divisors (see below), whose sum is σ = 2803584. Its totient is φ = 2343888.

The previous prime is 2571209. The next prime is 2571269. The reversal of 2571257 is 7521752.

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

It is a cyclic number.

It is not a de Polignac number, because 2571257 - 2⁸ = 2571001 is a prime.

It is a super-2 number, since 2×2571257² = 13222725120098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2571277) 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, 113 + ... + 2270.

It is an arithmetic number, because the mean of its divisors is an integer number (350448).

2^2571257 is an apocalyptic number.

It is an amenable number.

2571257 is a deficient number, since it is larger than the sum of its proper divisors (232327).

2571257 is a wasteful number, since it uses less digits than its factorization.

2571257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its digits is 4900, while the sum is 29.

The square root of 2571257 is about 1603.5139537902. The cubic root of 2571257 is about 136.9982950398.

The spelling of 2571257 in words is "two million, five hundred seventy-one thousand, two hundred fifty-seven".