225531644654 has 32 divisors (see below), whose sum is σ = 343262409984. Its totient is φ = 111123043200.

The previous prime is 225531644629. The next prime is 225531644683. The reversal of 225531644654 is 456446135522.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 225531644599 and 225531644608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36591377 + ... + 36597539.

It is an arithmetic number, because the mean of its divisors is an integer number (10726950312).

Almost surely, 2^225531644654 is an apocalyptic number.

225531644654 is a deficient number, since it is larger than the sum of its proper divisors (117730765330).

225531644654 is a wasteful number, since it uses less digits than its factorization.

225531644654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112.

The product of its digits is 3456000, while the sum is 47.

The spelling of 225531644654 in words is "two hundred twenty-five billion, five hundred thirty-one million, six hundred forty-four thousand, six hundred fifty-four".