22250052 has 72 divisors (see below), whose sum is σ = 63659232. Its totient is φ = 6739200.

The previous prime is 22250027. The next prime is 22250069. The reversal of 22250052 is 25005222.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9652 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (884156).

Almost surely, 2^22250052 is an apocalyptic number.

22250052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22250052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31829616).

22250052 is an abundant number, since it is smaller than the sum of its proper divisors (41409180).

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

22250052 is a wasteful number, since it uses less digits than its factorization.

22250052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2097 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22250052 is about 4716.9960780141. The cubic root of 22250052 is about 281.2615355269.

Adding to 22250052 its reverse (25005222), we get a palindrome (47255274).

The spelling of 22250052 in words is "twenty-two million, two hundred fifty thousand, fifty-two".