22140553 has 4 divisors (see below), whose sum is σ = 22151440. Its totient is φ = 22129668.

The previous prime is 22140527. The next prime is 22140557. The reversal of 22140553 is 35504122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22140553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22140557) 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, 1383 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (5537860).

Almost surely, 2^22140553 is an apocalyptic number.

It is an amenable number.

22140553 is a deficient number, since it is larger than the sum of its proper divisors (10887).

22140553 is an equidigital number, since it uses as much as digits as its factorization.

22140553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10886.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22140553 is about 4705.3749053609. The cubic root of 22140553 is about 280.7993865364.

Adding to 22140553 its reverse (35504122), we get a palindrome (57644675).

The spelling of 22140553 in words is "twenty-two million, one hundred forty thousand, five hundred fifty-three".