22088545 has 32 divisors (see below), whose sum is σ = 29393280. Its totient is φ = 15874560.

The previous prime is 22088531. The next prime is 22088551. The reversal of 22088545 is 54588022.

It is not a de Polignac number, because 22088545 - 2⁵ = 22088513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22088545.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206382 + ... + 206488.

It is an arithmetic number, because the mean of its divisors is an integer number (918540).

Almost surely, 2^22088545 is an apocalyptic number.

It is an amenable number.

22088545 is a deficient number, since it is larger than the sum of its proper divisors (7304735).

22088545 is a wasteful number, since it uses less digits than its factorization.

22088545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 22088545 is about 4699.8452102170. The cubic root of 22088545 is about 280.5793489099.

The spelling of 22088545 in words is "twenty-two million, eighty-eight thousand, five hundred forty-five".