22505502 has 8 divisors (see below), whose sum is σ = 45011016. Its totient is φ = 7501832.

The previous prime is 22505489. The next prime is 22505513. The reversal of 22505502 is 20550522.

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

22505502 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1875453 + ... + 1875464.

It is an arithmetic number, because the mean of its divisors is an integer number (5626377).

Almost surely, 2^22505502 is an apocalyptic number.

22505502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22505502 is a wasteful number, since it uses less digits than its factorization.

22505502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750922.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 22505502 is about 4743.9964165248. The cubic root of 22505502 is about 282.3338182566. Note that the first 3 decimals are identical.

The spelling of 22505502 in words is "twenty-two million, five hundred five thousand, five hundred two".