22506855 has 16 divisors (see below), whose sum is σ = 41155584. Its totient is φ = 10288800.

The previous prime is 22506853. The next prime is 22506859. The reversal of 22506855 is 55860522.

It is not a de Polignac number, because 22506855 - 2¹ = 22506853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22506851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107071 + ... + 107280.

It is an arithmetic number, because the mean of its divisors is an integer number (2572224).

Almost surely, 2^22506855 is an apocalyptic number.

22506855 is a deficient number, since it is larger than the sum of its proper divisors (18648729).

22506855 is a wasteful number, since it uses less digits than its factorization.

22506855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214366.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 22506855 is about 4744.1390156698. The cubic root of 22506855 is about 282.3394759842.

The spelling of 22506855 in words is "twenty-two million, five hundred six thousand, eight hundred fifty-five".