22551982 has 8 divisors (see below), whose sum is σ = 33914376. Its totient is φ = 11247192.

The previous prime is 22551961. The next prime is 22552037. The reversal of 22551982 is 28915522.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13408 + ... + 14995.

It is an arithmetic number, because the mean of its divisors is an integer number (4239297).

Almost surely, 2^22551982 is an apocalyptic number.

22551982 is a deficient number, since it is larger than the sum of its proper divisors (11362394).

22551982 is a wasteful number, since it uses less digits than its factorization.

22551982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28802.

The product of its digits is 14400, while the sum is 34.

The square root of 22551982 is about 4748.8927130437. The cubic root of 22551982 is about 282.5280500511.

The spelling of 22551982 in words is "twenty-two million, five hundred fifty-one thousand, nine hundred eighty-two".