225849359291 has 4 divisors (see below), whose sum is σ = 227201750832. Its totient is φ = 224496967752.

The previous prime is 225849359279. The next prime is 225849359321. The reversal of 225849359291 is 192953948522.

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

It is a cyclic number.

It is not a de Polignac number, because 225849359291 - 2¹⁸ = 225849097147 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 225849359291.

It is not an unprimeable number, because it can be changed into a prime (225849359221) 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, 676195520 + ... + 676195853.

It is an arithmetic number, because the mean of its divisors is an integer number (56800437708).

Almost surely, 2^225849359291 is an apocalyptic number.

225849359291 is a deficient number, since it is larger than the sum of its proper divisors (1352391541).

225849359291 is a wasteful number, since it uses less digits than its factorization.

225849359291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352391540.

The product of its digits is 13996800, while the sum is 59.

The spelling of 225849359291 in words is "two hundred twenty-five billion, eight hundred forty-nine million, three hundred fifty-nine thousand, two hundred ninety-one".