22756554 has 48 divisors (see below), whose sum is σ = 51787008. Its totient is φ = 7213536.

The previous prime is 22756553. The next prime is 22756567. The reversal of 22756554 is 45565722.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22756553) 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, 30939 + ... + 31665.

It is an arithmetic number, because the mean of its divisors is an integer number (1078896).

Almost surely, 2^22756554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22756554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25893504).

22756554 is an abundant number, since it is smaller than the sum of its proper divisors (29030454).

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

22756554 is a wasteful number, since it uses less digits than its factorization.

22756554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 816 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 22756554 is about 4770.3830034914. The cubic root of 22756554 is about 283.3797629410.

The spelling of 22756554 in words is "twenty-two million, seven hundred fifty-six thousand, five hundred fifty-four".