225787737 has 12 divisors (see below), whose sum is σ = 350201616. Its totient is φ = 129021480.

The previous prime is 225787729. The next prime is 225787741. The reversal of 225787737 is 737787522.

It is a happy number.

It is not a de Polignac number, because 225787737 - 2³ = 225787729 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (225787747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 767839 + ... + 768132.

It is an arithmetic number, because the mean of its divisors is an integer number (29183468).

Almost surely, 2^225787737 is an apocalyptic number.

It is an amenable number.

225787737 is a deficient number, since it is larger than the sum of its proper divisors (124413879).

225787737 is a wasteful number, since it uses less digits than its factorization.

225787737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535988 (or 1535981 counting only the distinct ones).

The product of its digits is 1152480, while the sum is 48.

The square root of 225787737 is about 15026.2349575667. The cubic root of 225787737 is about 608.9291765968.

The spelling of 225787737 in words is "two hundred twenty-five million, seven hundred eighty-seven thousand, seven hundred thirty-seven".