5215866 has 16 divisors (see below), whose sum is σ = 10603488. Its totient is φ = 1710000.

The previous prime is 5215849. The next prime is 5215867. The reversal of 5215866 is 6685125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215867) 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, 6760 + ... + 7491.

It is an arithmetic number, because the mean of its divisors is an integer number (662718).

Almost surely, 2^5215866 is an apocalyptic number.

5215866 is an abundant number, since it is smaller than the sum of its proper divisors (5387622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5215866 is a wasteful number, since it uses less digits than its factorization.

5215866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14317.

The product of its digits is 14400, while the sum is 33.

The square root of 5215866 is about 2283.8270512453. The cubic root of 5215866 is about 173.4238440835.

The spelling of 5215866 in words is "five million, two hundred fifteen thousand, eight hundred sixty-six".