225139268 has 6 divisors (see below), whose sum is σ = 393993726. Its totient is φ = 112569632.

The previous prime is 225139223. The next prime is 225139331. The reversal of 225139268 is 862931522.

225139268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 155950144 + 69189124 = 12488^2 + 8318^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28142405 + ... + 28142412.

It is an arithmetic number, because the mean of its divisors is an integer number (65665621).

Almost surely, 2^225139268 is an apocalyptic number.

It is an amenable number.

225139268 is a deficient number, since it is larger than the sum of its proper divisors (168854458).

225139268 is a wasteful number, since it uses less digits than its factorization.

225139268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56284821 (or 56284819 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 225139268 is about 15004.6415485342. The cubic root of 225139268 is about 608.3456634685.

The spelling of 225139268 in words is "two hundred twenty-five million, one hundred thirty-nine thousand, two hundred sixty-eight".