25622121163 has 4 divisors (see below), whose sum is σ = 25886266840. Its totient is φ = 25357975488.

The previous prime is 25622121059. The next prime is 25622121199. The reversal of 25622121163 is 36112122652.

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 25622121163 - 2²¹ = 25620024011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25622125163) 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, 132072693 + ... + 132072886.

It is an arithmetic number, because the mean of its divisors is an integer number (6471566710).

Almost surely, 2^25622121163 is an apocalyptic number.

25622121163 is a deficient number, since it is larger than the sum of its proper divisors (264145677).

25622121163 is an equidigital number, since it uses as much as digits as its factorization.

25622121163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264145676.

The product of its digits is 8640, while the sum is 31.

The spelling of 25622121163 in words is "twenty-five billion, six hundred twenty-two million, one hundred twenty-one thousand, one hundred sixty-three".