225074779 has 8 divisors (see below), whose sum is σ = 238248000. Its totient is φ = 212034312.

The previous prime is 225074753. The next prime is 225074791. The reversal of 225074779 is 977470522.

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 225074779 - 2²⁷ = 90857051 is a prime.

It is a super-2 number, since 2×225074779² = 101317312283797682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225074749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29689 + ... + 36490.

It is an arithmetic number, because the mean of its divisors is an integer number (29781000).

Almost surely, 2^225074779 is an apocalyptic number.

225074779 is a deficient number, since it is larger than the sum of its proper divisors (13173221).

225074779 is a wasteful number, since it uses less digits than its factorization.

225074779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66377.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 225074779 is about 15002.4924262604. The cubic root of 225074779 is about 608.2875729804.

The spelling of 225074779 in words is "two hundred twenty-five million, seventy-four thousand, seven hundred seventy-nine".