5646257 has 4 divisors (see below), whose sum is σ = 5652480. Its totient is φ = 5640036.

The previous prime is 5646239. The next prime is 5646269. The reversal of 5646257 is 7526465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7526465 = 5 ⋅1505293.

It is a cyclic number.

It is not a de Polignac number, because 5646257 - 2¹⁶ = 5580721 is a prime.

It is a super-2 number, since 2×5646257² = 63760436220098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5646757) 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, 1457 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (1413120).

Almost surely, 2^5646257 is an apocalyptic number.

It is an amenable number.

5646257 is a deficient number, since it is larger than the sum of its proper divisors (6223).

5646257 is a wasteful number, since it uses less digits than its factorization.

5646257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222.

The product of its digits is 50400, while the sum is 35.

The square root of 5646257 is about 2376.1853883904. The cubic root of 5646257 is about 178.0684099293.

The spelling of 5646257 in words is "five million, six hundred forty-six thousand, two hundred fifty-seven".