5657251 has 2 divisors, whose sum is σ = 5657252. Its totient is φ = 5657250.

The previous prime is 5657207. The next prime is 5657261. The reversal of 5657251 is 1527565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5657251 - 2¹⁵ = 5624483 is a prime.

It is not a weakly prime, because it can be changed into another prime (5657261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828625 + 2828626.

It is an arithmetic number, because the mean of its divisors is an integer number (2828626).

Almost surely, 2^5657251 is an apocalyptic number.

5657251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657251 is an equidigital number, since it uses as much as digits as its factorization.

5657251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 31.

The square root of 5657251 is about 2378.4976350629. The cubic root of 5657251 is about 178.1839091500.

The spelling of 5657251 in words is "five million, six hundred fifty-seven thousand, two hundred fifty-one".