56422224 has 80 divisors (see below), whose sum is σ = 163352640. Its totient is φ = 18645120.

The previous prime is 56422193. The next prime is 56422237. The reversal of 56422224 is 42222465.

It is a happy number.

It is a super-2 number, since 2×56422224² = 6366934722212352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56094 + ... + 57090.

It is an arithmetic number, because the mean of its divisors is an integer number (2041908).

Almost surely, 2^56422224 is an apocalyptic number.

56422224 is a gapful number since it is divisible by the number (54) 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 56422224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81676320).

56422224 is an abundant number, since it is smaller than the sum of its proper divisors (106930416).

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

56422224 is a wasteful number, since it uses less digits than its factorization.

56422224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1133 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 56422224 is about 7511.4728249525. The cubic root of 56422224 is about 383.5453603760.

Adding to 56422224 its reverse (42222465), we get a palindrome (98644689).

The spelling of 56422224 in words is "fifty-six million, four hundred twenty-two thousand, two hundred twenty-four".