5257665 has 24 divisors (see below), whose sum is σ = 10415808. Its totient is φ = 2403360.

The previous prime is 5257627. The next prime is 5257711. The reversal of 5257665 is 5667525.

5257665 is a `hidden beast` number, since 525 + 76 + 65 = 666.

It is not a de Polignac number, because 5257665 - 2¹¹ = 5255617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8031 + ... + 8660.

It is an arithmetic number, because the mean of its divisors is an integer number (433992).

Almost surely, 2^5257665 is an apocalyptic number.

It is an amenable number.

5257665 is a deficient number, since it is larger than the sum of its proper divisors (5158143).

5257665 is a wasteful number, since it uses less digits than its factorization.

5257665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16709 (or 16706 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 5257665 is about 2292.9598775382. The cubic root of 5257665 is about 173.8858744288.

The spelling of 5257665 in words is "five million, two hundred fifty-seven thousand, six hundred sixty-five".