22615560 has 96 divisors (see below), whose sum is σ = 80196480. Its totient is φ = 5481600.

The previous prime is 22615553. The next prime is 22615573. The reversal of 22615560 is 6551622.

It is a super-2 number, since 2×22615560² = 1022927108227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1105 + ... + 6815.

It is an arithmetic number, because the mean of its divisors is an integer number (835380).

Almost surely, 2^22615560 is an apocalyptic number.

22615560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22615560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40098240).

22615560 is an abundant number, since it is smaller than the sum of its proper divisors (57580920).

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

22615560 is a wasteful number, since it uses less digits than its factorization.

22615560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5739 (or 5732 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22615560 is about 4755.5819833118. The cubic root of 22615560 is about 282.7932996845.

The spelling of 22615560 in words is "twenty-two million, six hundred fifteen thousand, five hundred sixty".