2504657 has 2 divisors, whose sum is σ = 2504658. Its totient is φ = 2504656.

The previous prime is 2504639. The next prime is 2504669. The reversal of 2504657 is 7564052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2421136 + 83521 = 1556^2 + 289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2504657 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2504687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252328 + 1252329.

It is an arithmetic number, because the mean of its divisors is an integer number (1252329).

2^2504657 is an apocalyptic number.

It is an amenable number.

2504657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504657 is an equidigital number, since it uses as much as digits as its factorization.

2504657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2504657 is about 1582.6108176049. The cubic root of 2504657 is about 135.8051021745.

The spelling of 2504657 in words is "two million, five hundred four thousand, six hundred fifty-seven".