5618651 has 4 divisors (see below), whose sum is σ = 5642400. Its totient is φ = 5594904.

The previous prime is 5618633. The next prime is 5618671. The reversal of 5618651 is 1568165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5618651 - 2¹⁰ = 5617627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5618611) 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, 11516 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (1410600).

Almost surely, 2^5618651 is an apocalyptic number.

5618651 is a deficient number, since it is larger than the sum of its proper divisors (23749).

5618651 is a wasteful number, since it uses less digits than its factorization.

5618651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23748.

The product of its digits is 7200, while the sum is 32.

The square root of 5618651 is about 2370.3693804975. The cubic root of 5618651 is about 177.7777282841. Note that the first 4 decimals are identical.

The spelling of 5618651 in words is "five million, six hundred eighteen thousand, six hundred fifty-one".