22705506 has 24 divisors (see below), whose sum is σ = 52089804. Its totient is φ = 7123200.

The previous prime is 22705493. The next prime is 22705517. The reversal of 22705506 is 60550722.

It can be written as a sum of positive squares in 2 ways, for example, as 22610025 + 95481 = 4755^2 + 309^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22705506.

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 11 ways as a sum of consecutive naturals, for example, 36795 + ... + 37406.

Almost surely, 2^22705506 is an apocalyptic number.

22705506 is an abundant number, since it is smaller than the sum of its proper divisors (29384298).

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

22705506 is a wasteful number, since it uses less digits than its factorization.

22705506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74226 (or 74223 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 22705506 is about 4765.0294857430. The cubic root of 22705506 is about 283.1677097389.

It can be divided in two parts, 2270 and 5506, that added together give a 5-th power (7776 = 6⁵).

The spelling of 22705506 in words is "twenty-two million, seven hundred five thousand, five hundred six".