225779879 has 8 divisors (see below), whose sum is σ = 243778080. Its totient is φ = 207871776.

The previous prime is 225779857. The next prime is 225779887. The reversal of 225779879 is 978977522.

225779879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 225779879 - 2¹² = 225775783 is a prime.

It is a super-2 number, since 2×225779879² = 101953107522509282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225779899) 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, 17267 + ... + 27380.

It is an arithmetic number, because the mean of its divisors is an integer number (30472260).

Almost surely, 2^225779879 is an apocalyptic number.

225779879 is a deficient number, since it is larger than the sum of its proper divisors (17998201).

225779879 is a wasteful number, since it uses less digits than its factorization.

225779879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45049.

The product of its digits is 4445280, while the sum is 56.

The square root of 225779879 is about 15025.9734792791. The cubic root of 225779879 is about 608.9221124089.

The spelling of 225779879 in words is "two hundred twenty-five million, seven hundred seventy-nine thousand, eight hundred seventy-nine".