225655655473 has 4 divisors (see below), whose sum is σ = 230456839680. Its totient is φ = 220854471268.

The previous prime is 225655655443. The next prime is 225655655497. The reversal of 225655655473 is 374556556522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225655655473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225655655443) 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, 2400592033 + ... + 2400592126.

It is an arithmetic number, because the mean of its divisors is an integer number (57614209920).

Almost surely, 2^225655655473 is an apocalyptic number.

It is an amenable number.

225655655473 is a deficient number, since it is larger than the sum of its proper divisors (4801184207).

225655655473 is an equidigital number, since it uses as much as digits as its factorization.

225655655473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801184206.

The product of its digits is 37800000, while the sum is 55.

It can be divided in two parts, 225655 and 655473, that added together give a triangular number (881128 = T₁₃₂₇).

The spelling of 225655655473 in words is "two hundred twenty-five billion, six hundred fifty-five million, six hundred fifty-five thousand, four hundred seventy-three".