225652321261 has 8 divisors (see below), whose sum is σ = 227920674240. Its totient is φ = 223388730432.

The previous prime is 225652321229. The next prime is 225652321289. The reversal of 225652321261 is 162123256522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225652321261 - 2⁵ = 225652321229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225652321261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225652321561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095255 + ... + 1284868.

It is an arithmetic number, because the mean of its divisors is an integer number (28490084280).

Almost surely, 2^225652321261 is an apocalyptic number.

It is an amenable number.

225652321261 is a deficient number, since it is larger than the sum of its proper divisors (2268352979).

225652321261 is a wasteful number, since it uses less digits than its factorization.

225652321261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381075.

The product of its digits is 86400, while the sum is 37.

Adding to 225652321261 its reverse (162123256522), we get a palindrome (387775577783).

The spelling of 225652321261 in words is "two hundred twenty-five billion, six hundred fifty-two million, three hundred twenty-one thousand, two hundred sixty-one".