5649257 has 8 divisors (see below), whose sum is σ = 5769792. Its totient is φ = 5530000.

The previous prime is 5649221. The next prime is 5649307. The reversal of 5649257 is 7529465.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5649257 - 2⁸ = 5649001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5649257.

It is not an unprimeable number, because it can be changed into a prime (5649157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17663 + ... + 17979.

It is an arithmetic number, because the mean of its divisors is an integer number (721224).

Almost surely, 2^5649257 is an apocalyptic number.

It is an amenable number.

5649257 is a deficient number, since it is larger than the sum of its proper divisors (120535).

5649257 is a wasteful number, since it uses less digits than its factorization.

5649257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its digits is 75600, while the sum is 38.

The square root of 5649257 is about 2376.8165684377. The cubic root of 5649257 is about 178.0999417710.

The spelling of 5649257 in words is "five million, six hundred forty-nine thousand, two hundred fifty-seven".