5621444252 has 12 divisors (see below), whose sum is σ = 9956052456. Its totient is φ = 2776857840.

The previous prime is 5621444249. The next prime is 5621444261. The reversal of 5621444252 is 2524441265.

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, 8465699 + ... + 8466362.

It is an arithmetic number, because the mean of its divisors is an integer number (829671038).

Almost surely, 2^5621444252 is an apocalyptic number.

It is an amenable number.

5621444252 is a deficient number, since it is larger than the sum of its proper divisors (4334608204).

5621444252 is a wasteful number, since it uses less digits than its factorization.

5621444252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16932148 (or 16932146 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 5621444252 is about 74976.2912659729. The cubic root of 5621444252 is about 1778.0718349965.

The spelling of 5621444252 in words is "five billion, six hundred twenty-one million, four hundred forty-four thousand, two hundred fifty-two".