225434445655 has 4 divisors (see below), whose sum is σ = 270521334792. Its totient is φ = 180347556520.

The previous prime is 225434445629. The next prime is 225434445659. The reversal of 225434445655 is 556544434522.

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

It is not a de Polignac number, because 225434445655 - 2³¹ = 223286962007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225434445599 and 225434445608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225434445659) 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, 22543444561 + ... + 22543444570.

It is an arithmetic number, because the mean of its divisors is an integer number (67630333698).

Almost surely, 2^225434445655 is an apocalyptic number.

225434445655 is a deficient number, since it is larger than the sum of its proper divisors (45086889137).

225434445655 is an equidigital number, since it uses as much as digits as its factorization.

225434445655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45086889136.

The product of its digits is 11520000, while the sum is 49.

The spelling of 225434445655 in words is "two hundred twenty-five billion, four hundred thirty-four million, four hundred forty-five thousand, six hundred fifty-five".