225660736 has 28 divisors (see below), whose sum is σ = 511767328. Its totient is φ = 96711552.

The previous prime is 225660727. The next prime is 225660767. The reversal of 225660736 is 637066522.

225660736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 225660695 and 225660704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251406 + ... + 252301.

Almost surely, 2^225660736 is an apocalyptic number.

It is an amenable number.

225660736 is an abundant number, since it is smaller than the sum of its proper divisors (286106592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225660736 is an equidigital number, since it uses as much as digits as its factorization.

225660736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503726 (or 503716 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 225660736 is about 15022.0083876957. The cubic root of 225660736 is about 608.8149851005.

The spelling of 225660736 in words is "two hundred twenty-five million, six hundred sixty thousand, seven hundred thirty-six".