2570257 has 8 divisors (see below), whose sum is σ = 2634696. Its totient is φ = 2506752.

The previous prime is 2570251. The next prime is 2570311. The reversal of 2570257 is 7520752.

It can be written as a sum of positive squares in 4 ways, for example, as 1324801 + 1245456 = 1151^2 + 1116^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2570257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2570251) 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, 9873 + ... + 10129.

It is an arithmetic number, because the mean of its divisors is an integer number (329337).

2^2570257 is an apocalyptic number.

It is an amenable number.

2570257 is a deficient number, since it is larger than the sum of its proper divisors (64439).

2570257 is a wasteful number, since it uses less digits than its factorization.

2570257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 2570257 is about 1603.2021082820. The cubic root of 2570257 is about 136.9805325136.

The spelling of 2570257 in words is "two million, five hundred seventy thousand, two hundred fifty-seven".