225397499 has 8 divisors (see below), whose sum is σ = 229874112. Its totient is φ = 220929280.

The previous prime is 225397489. The next prime is 225397517. The reversal of 225397499 is 994793522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225397499 - 2⁸ = 225397243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225397409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98027 + ... + 100299.

It is an arithmetic number, because the mean of its divisors is an integer number (28734264).

Almost surely, 2^225397499 is an apocalyptic number.

225397499 is a deficient number, since it is larger than the sum of its proper divisors (4476613).

225397499 is a wasteful number, since it uses less digits than its factorization.

225397499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197.

The product of its digits is 1224720, while the sum is 50.

The square root of 225397499 is about 15013.2441197764. The cubic root of 225397499 is about 608.5781620569.

The spelling of 225397499 in words is "two hundred twenty-five million, three hundred ninety-seven thousand, four hundred ninety-nine".