225078789 has 8 divisors (see below), whose sum is σ = 323190112. Its totient is φ = 138510000.

The previous prime is 225078781. The next prime is 225078823. The reversal of 225078789 is 987870522.

225078789 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 not a de Polignac number, because 225078789 - 2³ = 225078781 is a prime.

It is a super-2 number, since 2×225078789² = 101320922515413042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225078781) 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, 2885587 + ... + 2885664.

It is an arithmetic number, because the mean of its divisors is an integer number (40398764).

Almost surely, 2^225078789 is an apocalyptic number.

It is an amenable number.

225078789 is a deficient number, since it is larger than the sum of its proper divisors (98111323).

225078789 is a wasteful number, since it uses less digits than its factorization.

225078789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771267.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 225078789 is about 15002.6260701252. The cubic root of 225078789 is about 608.2911854371.

The spelling of 225078789 in words is "two hundred twenty-five million, seventy-eight thousand, seven hundred eighty-nine".