225522399 has 8 divisors (see below), whose sum is σ = 302541952. Its totient is φ = 149425560.

The previous prime is 225522379. The next prime is 225522431. The reversal of 225522399 is 993225522.

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

It is a de Polignac number, because none of the positive numbers 2^k-225522399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225522379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230107 + ... + 231084.

It is an arithmetic number, because the mean of its divisors is an integer number (37817744).

Almost surely, 2^225522399 is an apocalyptic number.

225522399 is a deficient number, since it is larger than the sum of its proper divisors (77019553).

225522399 is a wasteful number, since it uses less digits than its factorization.

225522399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461357.

The product of its digits is 97200, while the sum is 39.

The square root of 225522399 is about 15017.4032042827. The cubic root of 225522399 is about 608.6905522076.

The spelling of 225522399 in words is "two hundred twenty-five million, five hundred twenty-two thousand, three hundred ninety-nine".