226618725 has 48 divisors (see below), whose sum is σ = 390189312. Its totient is φ = 115964160.

The previous prime is 226618703. The next prime is 226618727. The reversal of 226618725 is 527816622.

It is not a de Polignac number, because 226618725 - 2⁶ = 226618661 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226618727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186219 + ... + 187431.

It is an arithmetic number, because the mean of its divisors is an integer number (8128944).

Almost surely, 2^226618725 is an apocalyptic number.

226618725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

226618725 is a deficient number, since it is larger than the sum of its proper divisors (163570587).

226618725 is a wasteful number, since it uses less digits than its factorization.

226618725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1321 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 226618725 is about 15053.8608004724. The cubic root of 226618725 is about 609.6752952535.

The spelling of 226618725 in words is "two hundred twenty-six million, six hundred eighteen thousand, seven hundred twenty-five".