225715324071533 has 4 divisors (see below), whose sum is σ = 226593593815260. Its totient is φ = 224837054327808.

The previous prime is 225715324071529. The next prime is 225715324071577. The reversal of 225715324071533 is 335170423517522.

It is a happy number.

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 194286047454409 + 31429276617124 = 13938653^2 + 5606182^2 .

It is a cyclic number.

It is not a de Polignac number, because 225715324071533 - 2² = 225715324071529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225715324071733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439134871478 + ... + 439134871991.

It is an arithmetic number, because the mean of its divisors is an integer number (56648398453815).

Almost surely, 2^{225715324071533} is an apocalyptic number.

It is an amenable number.

225715324071533 is a deficient number, since it is larger than the sum of its proper divisors (878269743727).

225715324071533 is an equidigital number, since it uses as much as digits as its factorization.

225715324071533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878269743726.

The product of its (nonzero) digits is 5292000, while the sum is 50.

The spelling of 225715324071533 in words is "two hundred twenty-five trillion, seven hundred fifteen billion, three hundred twenty-four million, seventy-one thousand, five hundred thirty-three".