225793197 has 32 divisors (see below), whose sum is σ = 389525760. Its totient is φ = 126584640.

The previous prime is 225793193. The next prime is 225793213. The reversal of 225793197 is 791397522.

It is not a de Polignac number, because 225793197 - 2² = 225793193 is a prime.

It is a super-2 number, since 2×225793197² = 101965135622961618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225793193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1254 + ... + 21287.

It is an arithmetic number, because the mean of its divisors is an integer number (12172680).

Almost surely, 2^225793197 is an apocalyptic number.

225793197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

225793197 is a deficient number, since it is larger than the sum of its proper divisors (163732563).

225793197 is a wasteful number, since it uses less digits than its factorization.

225793197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22610 (or 22604 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 225793197 is about 15026.4166387066. The cubic root of 225793197 is about 608.9340849332.

The spelling of 225793197 in words is "two hundred twenty-five million, seven hundred ninety-three thousand, one hundred ninety-seven".