622564056 has 96 divisors (see below), whose sum is σ = 1756132560. Its totient is φ = 206623872.

The previous prime is 622564039. The next prime is 622564057. The reversal of 622564056 is 650465226.

622564056 is a `hidden beast` number, since 6 + 2 + 2 + 5 + 640 + 5 + 6 = 666.

It is a super-2 number, since 2×622564056² = 775172007646342272, which contains 22 as substring.

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 622564056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622564057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569046 + ... + 570138.

Almost surely, 2^622564056 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 622564056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878066280).

622564056 is an abundant number, since it is smaller than the sum of its proper divisors (1133568504).

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

622564056 is a wasteful number, since it uses less digits than its factorization.

622564056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1391 counting only the distinct ones).

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

The square root of 622564056 is about 24951.2335566801. The cubic root of 622564056 is about 853.8757522807.

The spelling of 622564056 in words is "six hundred twenty-two million, five hundred sixty-four thousand, fifty-six".