22554999361 has 4 divisors (see below), whose sum is σ = 22560321924. Its totient is φ = 22549676800.

The previous prime is 22554999331. The next prime is 22554999391. The reversal of 22554999361 is 16399945522.

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

It is an interprime number because it is at equal distance from previous prime (22554999331) and next prime (22554999391).

It can be written as a sum of positive squares in 2 ways, for example, as 17508317761 + 5046681600 = 132319^2 + 71040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22554999361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22554999301) 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, 2654920 + ... + 2663401.

It is an arithmetic number, because the mean of its divisors is an integer number (5640080481).

Almost surely, 2^22554999361 is an apocalyptic number.

It is an amenable number.

22554999361 is a deficient number, since it is larger than the sum of its proper divisors (5322563).

22554999361 is an equidigital number, since it uses as much as digits as its factorization.

22554999361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322562.

The product of its digits is 5248800, while the sum is 55.

The spelling of 22554999361 in words is "twenty-two billion, five hundred fifty-four million, nine hundred ninety-nine thousand, three hundred sixty-one".