22690553 has 4 divisors (see below), whose sum is σ = 22710948. Its totient is φ = 22670160.

The previous prime is 22690537. The next prime is 22690567. The reversal of 22690553 is 35509622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21409129 + 1281424 = 4627^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 22690553 - 2⁴ = 22690537 is a prime.

It is a super-2 number, since 2×22690553² = 1029722390891618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22690523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8426 + ... + 10787.

It is an arithmetic number, because the mean of its divisors is an integer number (5677737).

Almost surely, 2^22690553 is an apocalyptic number.

It is an amenable number.

22690553 is a deficient number, since it is larger than the sum of its proper divisors (20395).

22690553 is a wasteful number, since it uses less digits than its factorization.

22690553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394.

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

The square root of 22690553 is about 4763.4601919193. The cubic root of 22690553 is about 283.1055348550.

The spelling of 22690553 in words is "twenty-two million, six hundred ninety thousand, five hundred fifty-three".