22251954 has 16 divisors (see below), whose sum is σ = 44825760. Its totient is φ = 7363680.

The previous prime is 22251947. The next prime is 22251979. The reversal of 22251954 is 45915222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12507 + ... + 14174.

It is an arithmetic number, because the mean of its divisors is an integer number (2801610).

Almost surely, 2^22251954 is an apocalyptic number.

22251954 is an abundant number, since it is smaller than the sum of its proper divisors (22573806).

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

22251954 is a wasteful number, since it uses less digits than its factorization.

22251954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26825.

The product of its digits is 7200, while the sum is 30.

The square root of 22251954 is about 4717.1976850668. The cubic root of 22251954 is about 281.2695496534.

The spelling of 22251954 in words is "twenty-two million, two hundred fifty-one thousand, nine hundred fifty-four".