22775552 has 36 divisors (see below), whose sum is σ = 46541880. Its totient is φ = 11117568.

The previous prime is 22775549. The next prime is 22775573. The reversal of 22775552 is 25557722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9974 + ... + 12042.

It is an arithmetic number, because the mean of its divisors is an integer number (1292830).

Almost surely, 2^22775552 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 22775552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23270940).

22775552 is an abundant number, since it is smaller than the sum of its proper divisors (23766328).

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

22775552 is an equidigital number, since it uses as much as digits as its factorization.

22775552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128 (or 2114 counting only the distinct ones).

The product of its digits is 49000, while the sum is 35.

The square root of 22775552 is about 4772.3738328006. The cubic root of 22775552 is about 283.4585995885.

The spelling of 22775552 in words is "twenty-two million, seven hundred seventy-five thousand, five hundred fifty-two".