229018725 has 48 divisors (see below), whose sum is σ = 453096000. Its totient is φ = 112743360.

The previous prime is 229018721. The next prime is 229018753. The reversal of 229018725 is 527810922.

229018725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 229018725 - 2² = 229018721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229018725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229018721) 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, 4275 + ... + 21824.

It is an arithmetic number, because the mean of its divisors is an integer number (9439500).

Almost surely, 2^229018725 is an apocalyptic number.

229018725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

229018725 is a deficient number, since it is larger than the sum of its proper divisors (224077275).

229018725 is a wasteful number, since it uses less digits than its factorization.

229018725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26131 (or 26120 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 229018725 is about 15133.3646291894. The cubic root of 229018725 is about 611.8199922344.

It can be divided in two parts, 22901 and 8725, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 229018725 in words is "two hundred twenty-nine million, eighteen thousand, seven hundred twenty-five".