22548385 has 8 divisors (see below), whose sum is σ = 27129960. Its totient is φ = 17990784.

The previous prime is 22548347. The next prime is 22548389. The reversal of 22548385 is 58384522.

It can be written as a sum of positive squares in 4 ways, for example, as 4511376 + 18037009 = 2124^2 + 4247^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22548385 - 2⁹ = 22547873 is a prime.

It is a super-2 number, since 2×22548385² = 1016859332216450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22548389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3852 + ... + 7741.

It is an arithmetic number, because the mean of its divisors is an integer number (3391245).

Almost surely, 2^22548385 is an apocalyptic number.

It is an amenable number.

22548385 is a deficient number, since it is larger than the sum of its proper divisors (4581575).

22548385 is a wasteful number, since it uses less digits than its factorization.

22548385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987.

The product of its digits is 76800, while the sum is 37.

The square root of 22548385 is about 4748.5139780778. The cubic root of 22548385 is about 282.5130283495.

The spelling of 22548385 in words is "twenty-two million, five hundred forty-eight thousand, three hundred eighty-five".