22015056 has 40 divisors (see below), whose sum is σ = 64997824. Its totient is φ = 6289920.

The previous prime is 22015027. The next prime is 22015067. The reversal of 22015056 is 65051022.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32425 + ... + 33096.

Almost surely, 2^22015056 is an apocalyptic number.

It is an amenable number.

22015056 is an abundant number, since it is smaller than the sum of its proper divisors (42982768).

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

22015056 is a wasteful number, since it uses less digits than its factorization.

22015056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65539 (or 65533 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 22015056 is about 4692.0204603134. The cubic root of 22015056 is about 280.2678389503.

Adding to 22015056 its reverse (65051022), we get a palindrome (87066078).

The spelling of 22015056 in words is "twenty-two million, fifteen thousand, fifty-six".