22553959 has 4 divisors (see below), whose sum is σ = 22619304. Its totient is φ = 22488616.

The previous prime is 22553941. The next prime is 22553963. The reversal of 22553959 is 95935522.

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

It is a cyclic number.

It is not a de Polignac number, because 22553959 - 2¹³ = 22545767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553359) 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, 32152 + ... + 32845.

It is an arithmetic number, because the mean of its divisors is an integer number (5654826).

Almost surely, 2^22553959 is an apocalyptic number.

22553959 is a deficient number, since it is larger than the sum of its proper divisors (65345).

22553959 is an equidigital number, since it uses as much as digits as its factorization.

22553959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65344.

The product of its digits is 121500, while the sum is 40.

The square root of 22553959 is about 4749.1008622686. The cubic root of 22553959 is about 282.5363056689.

The spelling of 22553959 in words is "twenty-two million, five hundred fifty-three thousand, nine hundred fifty-nine".