22535545 has 8 divisors (see below), whose sum is σ = 27082440. Its totient is φ = 18001920.

The previous prime is 22535521. The next prime is 22535551. The reversal of 22535545 is 54553522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1301881 + 21233664 = 1141^2 + 4608^2 .

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

It is not a de Polignac number, because 22535545 - 2⁷ = 22535417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (3385305).

Almost surely, 2^22535545 is an apocalyptic number.

It is an amenable number.

22535545 is a deficient number, since it is larger than the sum of its proper divisors (4546895).

22535545 is an equidigital number, since it uses as much as digits as its factorization.

22535545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635.

The product of its digits is 30000, while the sum is 31.

The square root of 22535545 is about 4747.1617836345. The cubic root of 22535545 is about 282.4593932289.

The spelling of 22535545 in words is "twenty-two million, five hundred thirty-five thousand, five hundred forty-five".