56622500 has 120 divisors (see below), whose sum is σ = 141704640. Its totient is φ = 19600000.

The previous prime is 56622493. The next prime is 56622509. The reversal of 56622500 is 522665.

It is a happy number.

It is a super-2 number, since 2×56622500² = 6412215012500000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56622500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56622509) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 797465 + ... + 797535.

It is an arithmetic number, because the mean of its divisors is an integer number (1180872).

Almost surely, 2^56622500 is an apocalyptic number.

56622500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56622500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70852320).

56622500 is an abundant number, since it is smaller than the sum of its proper divisors (85082140).

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

56622500 is a wasteful number, since it uses less digits than its factorization.

56622500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56622500 is about 7524.7923559391. The cubic root of 56622500 is about 383.9986346161.

The spelling of 56622500 in words is "fifty-six million, six hundred twenty-two thousand, five hundred".