22115525497 has 8 divisors (see below), whose sum is σ = 23817999744. Its totient is φ = 20413234128.

The previous prime is 22115525489. The next prime is 22115525507. The reversal of 22115525497 is 79452551122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22115525497 - 2³ = 22115525489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22115525407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305328 + ... + 370750.

It is an arithmetic number, because the mean of its divisors is an integer number (2977249968).

Almost surely, 2^22115525497 is an apocalyptic number.

It is an amenable number.

22115525497 is a deficient number, since it is larger than the sum of its proper divisors (1702474247).

22115525497 is a wasteful number, since it uses less digits than its factorization.

22115525497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91439.

The product of its digits is 252000, while the sum is 43.

The spelling of 22115525497 in words is "twenty-two billion, one hundred fifteen million, five hundred twenty-five thousand, four hundred ninety-seven".