5625891 has 12 divisors (see below), whose sum is σ = 8238568. Its totient is φ = 3698784.

The previous prime is 5625877. The next prime is 5625937. The reversal of 5625891 is 1985265.

It is a happy number.

5625891 is a `hidden beast` number, since 562 + 5 + 8 + 91 = 666.

It is not a de Polignac number, because 5625891 - 2¹¹ = 5623843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5625811) 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 in 11 ways as a sum of consecutive naturals, for example, 3625 + ... + 4938.

Almost surely, 2^5625891 is an apocalyptic number.

5625891 is a deficient number, since it is larger than the sum of its proper divisors (2612677).

5625891 is a wasteful number, since it uses less digits than its factorization.

5625891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642 (or 8639 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 5625891 is about 2371.8960769815. The cubic root of 5625891 is about 177.8540549271.

The spelling of 5625891 in words is "five million, six hundred twenty-five thousand, eight hundred ninety-one".