225921896 has 8 divisors (see below), whose sum is σ = 423603570. Its totient is φ = 112960944.

The previous prime is 225921887. The next prime is 225921937. The reversal of 225921896 is 698129522.

It can be written as a sum of positive squares in only one way, i.e., 122899396 + 103022500 = 11086^2 + 10150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14120111 + ... + 14120126.

Almost surely, 2^225921896 is an apocalyptic number.

It is an amenable number.

225921896 is a deficient number, since it is larger than the sum of its proper divisors (197681674).

225921896 is a wasteful number, since it uses less digits than its factorization.

225921896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28240243 (or 28240239 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 225921896 is about 15030.6984534984. The cubic root of 225921896 is about 609.0497576281.

The spelling of 225921896 in words is "two hundred twenty-five million, nine hundred twenty-one thousand, eight hundred ninety-six".