22541013531 has 32 divisors (see below), whose sum is σ = 34209120000. Its totient is φ = 14661368064.

The previous prime is 22541013499. The next prime is 22541013533. The reversal of 22541013531 is 13531014522.

22541013531 is a `hidden beast` number, since 2 + 25 + 4 + 101 + 3 + 531 = 666.

It is not a de Polignac number, because 22541013531 - 2⁵ = 22541013499 is a prime.

It is a super-2 number, since 2×22541013531² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22541013495 and 22541013504.

It is not an unprimeable number, because it can be changed into a prime (22541013533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068120 + ... + 1089018.

It is an arithmetic number, because the mean of its divisors is an integer number (1069035000).

Almost surely, 2^22541013531 is an apocalyptic number.

22541013531 is a deficient number, since it is larger than the sum of its proper divisors (11668106469).

22541013531 is a wasteful number, since it uses less digits than its factorization.

22541013531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21880 (or 21874 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Subtracting from 22541013531 its reverse (13531014522), we obtain a palindrome (9009999009).

The spelling of 22541013531 in words is "twenty-two billion, five hundred forty-one million, thirteen thousand, five hundred thirty-one".