22503066 has 8 divisors (see below), whose sum is σ = 45006144. Its totient is φ = 7501020.

The previous prime is 22503031. The next prime is 22503073. The reversal of 22503066 is 66030522.

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

22503066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1875250 + ... + 1875261.

It is an arithmetic number, because the mean of its divisors is an integer number (5625768).

Almost surely, 2^22503066 is an apocalyptic number.

22503066 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.

22503066 is a wasteful number, since it uses less digits than its factorization.

22503066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750516.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 22503066 is about 4743.7396640204. The cubic root of 22503066 is about 282.3236312662.

Adding to 22503066 its reverse (66030522), we get a palindrome (88533588).

The spelling of 22503066 in words is "twenty-two million, five hundred three thousand, sixty-six".