225396737 has 4 divisors (see below), whose sum is σ = 225533616. Its totient is φ = 225259860.

The previous prime is 225396733. The next prime is 225396763. The reversal of 225396737 is 737693522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225396737 - 2² = 225396733 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225396733) 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, 65939 + ... + 69272.

It is an arithmetic number, because the mean of its divisors is an integer number (56383404).

Almost surely, 2^225396737 is an apocalyptic number.

It is an amenable number.

225396737 is a deficient number, since it is larger than the sum of its proper divisors (136879).

225396737 is a wasteful number, since it uses less digits than its factorization.

225396737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136878.

The product of its digits is 476280, while the sum is 44.

The square root of 225396737 is about 15013.2187421619. The cubic root of 225396737 is about 608.5774762506.

The spelling of 225396737 in words is "two hundred twenty-five million, three hundred ninety-six thousand, seven hundred thirty-seven".