22255776 has 48 divisors (see below), whose sum is σ = 64915200. Its totient is φ = 7418304.

The previous prime is 22255763. The next prime is 22255781. The reversal of 22255776 is 67755222.

It is a tau number, because it is divible by the number of its divisors (48).

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 22255776.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12016 + ... + 13743.

It is an arithmetic number, because the mean of its divisors is an integer number (1352400).

Almost surely, 2^22255776 is an apocalyptic number.

It is an amenable number.

22255776 is an abundant number, since it is smaller than the sum of its proper divisors (42659424).

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

22255776 is a wasteful number, since it uses less digits than its factorization.

22255776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25778 (or 25764 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 22255776 is about 4717.6027810743. The cubic root of 22255776 is about 281.2856523693.

It can be divided in two parts, 2225 and 5776, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 22255776 in words is "twenty-two million, two hundred fifty-five thousand, seven hundred seventy-six".