56622228 has 96 divisors (see below), whose sum is σ = 152334336. Its totient is φ = 16232832.

The previous prime is 56622217. The next prime is 56622229. The reversal of 56622228 is 82222665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56622229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154101 + ... + 154467.

It is an arithmetic number, because the mean of its divisors is an integer number (1586816).

Almost surely, 2^56622228 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 56622228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76167168).

56622228 is an abundant number, since it is smaller than the sum of its proper divisors (95712108).

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

56622228 is a wasteful number, since it uses less digits than its factorization.

56622228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 451 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 56622228 is about 7524.7742823290. The cubic root of 56622228 is about 383.9980197381.

The spelling of 56622228 in words is "fifty-six million, six hundred twenty-two thousand, two hundred twenty-eight".