5642566 has 8 divisors (see below), whose sum is σ = 8525160. Its totient is φ = 2800848.

The previous prime is 5642531. The next prime is 5642591. The reversal of 5642566 is 6652465.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9871 + ... + 10426.

It is an arithmetic number, because the mean of its divisors is an integer number (1065645).

Almost surely, 2^5642566 is an apocalyptic number.

5642566 is a deficient number, since it is larger than the sum of its proper divisors (2882594).

5642566 is a wasteful number, since it uses less digits than its factorization.

5642566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20438.

The product of its digits is 43200, while the sum is 34.

The square root of 5642566 is about 2375.4085964314. The cubic root of 5642566 is about 178.0295999254.

The spelling of 5642566 in words is "five million, six hundred forty-two thousand, five hundred sixty-six".