22115525541 has 24 divisors (see below), whose sum is σ = 30628457184. Its totient is φ = 14193695040.

The previous prime is 22115525507. The next prime is 22115525567. The reversal of 22115525541 is 14552551122.

It is not a de Polignac number, because 22115525541 - 2¹³ = 22115517349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22115523541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 862851 + ... + 888111.

It is an arithmetic number, because the mean of its divisors is an integer number (1276185716).

Almost surely, 2^22115525541 is an apocalyptic number.

It is an amenable number.

22115525541 is a deficient number, since it is larger than the sum of its proper divisors (8512931643).

22115525541 is a wasteful number, since it uses less digits than its factorization.

22115525541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25669 (or 25640 counting only the distinct ones).

The product of its digits is 20000, while the sum is 33.

The spelling of 22115525541 in words is "twenty-two billion, one hundred fifteen million, five hundred twenty-five thousand, five hundred forty-one".