5621422356 has 180 divisors, whose sum is σ = 16250582656. Its totient is φ = 1693185120.

The previous prime is 5621422349. The next prime is 5621422427. The reversal of 5621422356 is 6532241265.

5621422356 is a `hidden beast` number, since 5 + 621 + 4 + 2 + 23 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5621422356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8742171 + ... + 8742813.

Almost surely, 2^5621422356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5621422356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8125291328).

5621422356 is an abundant number, since it is smaller than the sum of its proper divisors (10629160300).

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

5621422356 is a wasteful number, since it uses less digits than its factorization.

5621422356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 882 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 5621422356 is about 74976.1452463382. The cubic root of 5621422356 is about 1778.0695264135.

It can be divided in two parts, 56 and 21422356, that added together give a palindrome (21422412).

The spelling of 5621422356 in words is "five billion, six hundred twenty-one million, four hundred twenty-two thousand, three hundred fifty-six".