22125779 has 8 divisors (see below), whose sum is σ = 24382512. Its totient is φ = 19948320.

The previous prime is 22125743. The next prime is 22125799. The reversal of 22125779 is 97752122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22125779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125799) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19232 + ... + 20349.

It is an arithmetic number, because the mean of its divisors is an integer number (3047814).

Almost surely, 2^22125779 is an apocalyptic number.

22125779 is a deficient number, since it is larger than the sum of its proper divisors (2256733).

22125779 is a wasteful number, since it uses less digits than its factorization.

22125779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39637.

The product of its digits is 17640, while the sum is 35.

The square root of 22125779 is about 4703.8047365936. The cubic root of 22125779 is about 280.7369151485.

The spelling of 22125779 in words is "twenty-two million, one hundred twenty-five thousand, seven hundred seventy-nine".