225996455 has 4 divisors (see below), whose sum is σ = 271195752. Its totient is φ = 180797160.

The previous prime is 225996443. The next prime is 225996461. The reversal of 225996455 is 554699522.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 225996455 - 2¹⁰ = 225995431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22599641 + ... + 22599650.

It is an arithmetic number, because the mean of its divisors is an integer number (67798938).

Almost surely, 2^225996455 is an apocalyptic number.

225996455 is a deficient number, since it is larger than the sum of its proper divisors (45199297).

225996455 is an equidigital number, since it uses as much as digits as its factorization.

225996455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45199296.

The product of its digits is 972000, while the sum is 47.

The square root of 225996455 is about 15033.1784729644. The cubic root of 225996455 is about 609.1167500226.

The spelling of 225996455 in words is "two hundred twenty-five million, nine hundred ninety-six thousand, four hundred fifty-five".