225724621452636 has 48 divisors (see below), whose sum is σ = 529419561977600. Its totient is φ = 74851832246400.

The previous prime is 225724621452599. The next prime is 225724621452637. The reversal of 225724621452636 is 636254126427522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225724621452637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8078640 + ... + 22731336.

Almost surely, 2^{225724621452636} is an apocalyptic number.

It is an amenable number.

225724621452636 is an abundant number, since it is smaller than the sum of its proper divisors (303694940524964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225724621452636 is a wasteful number, since it uses less digits than its factorization.

225724621452636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14659354 (or 14659352 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 57.

The spelling of 225724621452636 in words is "two hundred twenty-five trillion, seven hundred twenty-four billion, six hundred twenty-one million, four hundred fifty-two thousand, six hundred thirty-six".