22502845 has 8 divisors (see below), whose sum is σ = 27733464. Its totient is φ = 17515584.

The previous prime is 22502827. The next prime is 22502861. The reversal of 22502845 is 54820522.

It can be written as a sum of positive squares in 4 ways, for example, as 777924 + 21724921 = 882^2 + 4661^2 .

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 22502845 - 2⁵ = 22502813 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 60634 + ... + 61003.

It is an arithmetic number, because the mean of its divisors is an integer number (3466683).

Almost surely, 2^22502845 is an apocalyptic number.

It is an amenable number.

22502845 is a deficient number, since it is larger than the sum of its proper divisors (5230619).

22502845 is a wasteful number, since it uses less digits than its factorization.

22502845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121679.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 22502845 is about 4743.7163701048. The cubic root of 22502845 is about 282.3227070406.

The spelling of 22502845 in words is "twenty-two million, five hundred two thousand, eight hundred forty-five".