22553690 has 16 divisors (see below), whose sum is σ = 41587560. Its totient is φ = 8801280.

The previous prime is 22553689. The next prime is 22553693. The reversal of 22553690 is 9635522.

It can be written as a sum of positive squares in 4 ways, for example, as 15578809 + 6974881 = 3947^2 + 2641^2 .

It is a super-2 number, since 2×22553690² = 1017337865232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22553693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27095 + ... + 27914.

Almost surely, 2^22553690 is an apocalyptic number.

22553690 is a deficient number, since it is larger than the sum of its proper divisors (19033870).

22553690 is a wasteful number, since it uses less digits than its factorization.

22553690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55057.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 22553690 is about 4749.0725410337. The cubic root of 22553690 is about 282.5351823987.

The spelling of 22553690 in words is "twenty-two million, five hundred fifty-three thousand, six hundred ninety".