2495257 has 4 divisors (see below), whose sum is σ = 2498740. Its totient is φ = 2491776.

The previous prime is 2495249. The next prime is 2495263. The reversal of 2495257 is 7525942.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1320201 + 1175056 = 1149^2 + 1084^2 .

It is a cyclic number.

It is not a de Polignac number, because 2495257 - 2³ = 2495249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2495557) 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, 228 + ... + 2245.

It is an arithmetic number, because the mean of its divisors is an integer number (624685).

2^2495257 is an apocalyptic number.

It is an amenable number.

2495257 is a deficient number, since it is larger than the sum of its proper divisors (3483).

2495257 is a wasteful number, since it uses less digits than its factorization.

2495257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482.

The product of its digits is 25200, while the sum is 34.

The square root of 2495257 is about 1579.6382497268. The cubic root of 2495257 is about 135.6349966086.

The spelling of 2495257 in words is "two million, four hundred ninety-five thousand, two hundred fifty-seven".