22125450 has 24 divisors (see below), whose sum is σ = 54871488. Its totient is φ = 5900080.

The previous prime is 22125437. The next prime is 22125469. The reversal of 22125450 is 5452122.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73602 + ... + 73901.

It is an arithmetic number, because the mean of its divisors is an integer number (2286312).

Almost surely, 2^22125450 is an apocalyptic number.

22125450 is an abundant number, since it is smaller than the sum of its proper divisors (32746038).

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

22125450 is a wasteful number, since it uses less digits than its factorization.

22125450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147518 (or 147513 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22125450 is about 4703.7697647738. The cubic root of 22125450 is about 280.7355236660.

Adding to 22125450 its reverse (5452122), we get a palindrome (27577572).

The spelling of 22125450 in words is "twenty-two million, one hundred twenty-five thousand, four hundred fifty".