22355545 has 8 divisors (see below), whose sum is σ = 26852040. Its totient is φ = 17867520.

The previous prime is 22355519. The next prime is 22355551. The reversal of 22355545 is 54555322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 853776 + 21501769 = 924^2 + 4637^2 .

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

It is not a de Polignac number, because 22355545 - 2¹¹ = 22353497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9265 + ... + 11425.

It is an arithmetic number, because the mean of its divisors is an integer number (3356505).

Almost surely, 2^22355545 is an apocalyptic number.

It is an amenable number.

22355545 is a deficient number, since it is larger than the sum of its proper divisors (4496495).

22355545 is a wasteful number, since it uses less digits than its factorization.

22355545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235.

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

The square root of 22355545 is about 4728.1650774904. The cubic root of 22355545 is about 281.7053450302.

The spelling of 22355545 in words is "twenty-two million, three hundred fifty-five thousand, five hundred forty-five".