228725599 has 4 divisors (see below), whose sum is σ = 242180064. Its totient is φ = 215271136.

The previous prime is 228725573. The next prime is 228725617. The reversal of 228725599 is 995527822.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 228725599 - 2²⁵ = 195171167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228725699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6727207 + ... + 6727240.

It is an arithmetic number, because the mean of its divisors is an integer number (60545016).

Almost surely, 2^228725599 is an apocalyptic number.

228725599 is a deficient number, since it is larger than the sum of its proper divisors (13454465).

228725599 is a wasteful number, since it uses less digits than its factorization.

228725599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13454464.

The product of its digits is 907200, while the sum is 49.

The square root of 228725599 is about 15123.6767685639. The cubic root of 228725599 is about 611.5588535941.

The spelling of 228725599 in words is "two hundred twenty-eight million, seven hundred twenty-five thousand, five hundred ninety-nine".