225723713530561 has 4 divisors (see below), whose sum is σ = 225725394494932. Its totient is φ = 225722032566192.

The previous prime is 225723713530541. The next prime is 225723713530571. The reversal of 225723713530561 is 165035317327522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106214542929936 + 119509170600625 = 10306044^2 + 10932025^2 .

It is a cyclic number.

It is not a de Polignac number, because 225723713530561 - 2²⁹ = 225723176659649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225723713530499 and 225723713530508.

It is not an unprimeable number, because it can be changed into a prime (225723713530501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840280746 + ... + 840549331.

It is an arithmetic number, because the mean of its divisors is an integer number (56431348623733).

Almost surely, 2^{225723713530561} is an apocalyptic number.

It is an amenable number.

225723713530561 is a deficient number, since it is larger than the sum of its proper divisors (1680964371).

225723713530561 is a wasteful number, since it uses less digits than its factorization.

225723713530561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680964370.

The product of its (nonzero) digits is 7938000, while the sum is 52.

The spelling of 225723713530561 in words is "two hundred twenty-five trillion, seven hundred twenty-three billion, seven hundred thirteen million, five hundred thirty thousand, five hundred sixty-one".