2499257 has 2 divisors, whose sum is σ = 2499258. Its totient is φ = 2499256.

The previous prime is 2499253. The next prime is 2499269. The reversal of 2499257 is 7529942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2399401 + 99856 = 1549^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 2499257 - 2² = 2499253 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2499257.

It is not a weakly prime, because it can be changed into another prime (2499253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249628 + 1249629.

It is an arithmetic number, because the mean of its divisors is an integer number (1249629).

2^2499257 is an apocalyptic number.

It is an amenable number.

2499257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499257 is an equidigital number, since it uses as much as digits as its factorization.

2499257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 2499257 is about 1580.9038553941. The cubic root of 2499257 is about 135.7074340823.

The spelling of 2499257 in words is "two million, four hundred ninety-nine thousand, two hundred fifty-seven".