5215444 has 12 divisors (see below), whose sum is σ = 9829204. Its totient is φ = 2407104.

The previous prime is 5215433. The next prime is 5215451. The reversal of 5215444 is 4445125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3283344 + 1932100 = 1812^2 + 1390^2 .

It is a super-2 number, since 2×5215444² = 54401712234272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 50097 + ... + 50200.

Almost surely, 2^5215444 is an apocalyptic number.

It is an amenable number.

5215444 is a deficient number, since it is larger than the sum of its proper divisors (4613760).

5215444 is a wasteful number, since it uses less digits than its factorization.

5215444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100314 (or 100312 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 5215444 is about 2283.7346605944. The cubic root of 5215444 is about 173.4191668905.

The spelling of 5215444 in words is "five million, two hundred fifteen thousand, four hundred forty-four".