22252542 has 16 divisors (see below), whose sum is σ = 47928720. Its totient is φ = 6846912.

The previous prime is 22252537. The next prime is 22252547. The reversal of 22252542 is 24525222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22252537) and next prime (22252547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142567 + ... + 142722.

It is an arithmetic number, because the mean of its divisors is an integer number (2995545).

Almost surely, 2^22252542 is an apocalyptic number.

22252542 is an abundant number, since it is smaller than the sum of its proper divisors (25676178).

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

22252542 is a wasteful number, since it uses less digits than its factorization.

22252542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285307.

The product of its digits is 3200, while the sum is 24.

The square root of 22252542 is about 4717.2600097938. The cubic root of 22252542 is about 281.2720271143.

Adding to 22252542 its reverse (24525222), we get a palindrome (46777764).

The spelling of 22252542 in words is "twenty-two million, two hundred fifty-two thousand, five hundred forty-two".