225401243524 has 6 divisors (see below), whose sum is σ = 394452176174. Its totient is φ = 112700621760.

The previous prime is 225401243521. The next prime is 225401243527. The reversal of 225401243524 is 425342104522.

225401243524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225401243521) and next prime (225401243527).

It can be written as a sum of positive squares in only one way, i.e., 157132960000 + 68268283524 = 396400^2 + 261282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225401243524.

It is not an unprimeable number, because it can be changed into a prime (225401243521) 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 as a sum of consecutive naturals, namely, 28175155437 + ... + 28175155444.

Almost surely, 2^225401243524 is an apocalyptic number.

It is an amenable number.

225401243524 is a deficient number, since it is larger than the sum of its proper divisors (169050932650).

225401243524 is a wasteful number, since it uses less digits than its factorization.

225401243524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56350310885 (or 56350310883 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 225401243524 in words is "two hundred twenty-five billion, four hundred one million, two hundred forty-three thousand, five hundred twenty-four".