225775437455 has 4 divisors (see below), whose sum is σ = 270930524952. Its totient is φ = 180620349960.

The previous prime is 225775437451. The next prime is 225775437457. The reversal of 225775437455 is 554734577522.

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

It is not a de Polignac number, because 225775437455 - 2² = 225775437451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225775437455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225775437451) 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, 22577543741 + ... + 22577543750.

It is an arithmetic number, because the mean of its divisors is an integer number (67732631238).

Almost surely, 2^225775437455 is an apocalyptic number.

225775437455 is a deficient number, since it is larger than the sum of its proper divisors (45155087497).

225775437455 is an equidigital number, since it uses as much as digits as its factorization.

225775437455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45155087496.

The product of its digits is 41160000, while the sum is 56.

The spelling of 225775437455 in words is "two hundred twenty-five billion, seven hundred seventy-five million, four hundred thirty-seven thousand, four hundred fifty-five".