22147552 has 24 divisors (see below), whose sum is σ = 49832496. Its totient is φ = 9491712.

The previous prime is 22147529. The next prime is 22147579. The reversal of 22147552 is 25574122.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 22147552.

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, 49213 + ... + 49660.

It is an arithmetic number, because the mean of its divisors is an integer number (2076354).

Almost surely, 2^22147552 is an apocalyptic number.

It is an amenable number.

22147552 is an abundant number, since it is smaller than the sum of its proper divisors (27684944).

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

22147552 is an equidigital number, since it uses as much as digits as its factorization.

22147552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98890 (or 98882 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 22147552 is about 4706.1185705420. The cubic root of 22147552 is about 280.8289718837.

The spelling of 22147552 in words is "twenty-two million, one hundred forty-seven thousand, five hundred fifty-two".