225320405524 has 24 divisors (see below), whose sum is σ = 407975450400. Its totient is φ = 108757283040.

The previous prime is 225320405491. The next prime is 225320405543. The reversal of 225320405524 is 425504023522.

It is a self number, because there is not a number n which added to its sum of digits gives 225320405524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552787 + ... + 869605.

It is an arithmetic number, because the mean of its divisors is an integer number (16998977100).

Almost surely, 2^225320405524 is an apocalyptic number.

It is an amenable number.

225320405524 is a deficient number, since it is larger than the sum of its proper divisors (182655044876).

225320405524 is a wasteful number, since it uses less digits than its factorization.

225320405524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322983 (or 322981 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

The spelling of 225320405524 in words is "two hundred twenty-five billion, three hundred twenty million, four hundred five thousand, five hundred twenty-four".