22153440025 has 24 divisors (see below), whose sum is σ = 28592009280. Its totient is φ = 17006552640.

The previous prime is 22153440019. The next prime is 22153440031. The reversal of 22153440025 is 52004435122.

It is an interprime number because it is at equal distance from previous prime (22153440019) and next prime (22153440031).

It is not a de Polignac number, because 22153440025 - 2²⁷ = 22019222297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22153439975 and 22153440002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24444 + ... + 211906.

It is an arithmetic number, because the mean of its divisors is an integer number (1191333720).

Almost surely, 2^22153440025 is an apocalyptic number.

22153440025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22153440025 is a deficient number, since it is larger than the sum of its proper divisors (6438569255).

22153440025 is a wasteful number, since it uses less digits than its factorization.

22153440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187665 (or 187660 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22153440025 its reverse (52004435122), we get a palindrome (74157875147).

The spelling of 22153440025 in words is "twenty-two billion, one hundred fifty-three million, four hundred forty thousand, twenty-five".