225569048021 has 4 divisors (see below), whose sum is σ = 237441103200. Its totient is φ = 213696992844.

The previous prime is 225569048017. The next prime is 225569048039. The reversal of 225569048021 is 120840965522.

225569048021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 225569048021 - 2² = 225569048017 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 (225569048041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5936027561 + ... + 5936027598.

It is an arithmetic number, because the mean of its divisors is an integer number (59360275800).

Almost surely, 2^225569048021 is an apocalyptic number.

It is an amenable number.

225569048021 is a deficient number, since it is larger than the sum of its proper divisors (11872055179).

225569048021 is a wasteful number, since it uses less digits than its factorization.

225569048021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11872055178.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 225569048021 in words is "two hundred twenty-five billion, five hundred sixty-nine million, forty-eight thousand, twenty-one".