225834925991 has 8 divisors (see below), whose sum is σ = 228936000384. Its totient is φ = 222751323000.

The previous prime is 225834925969. The next prime is 225834925993. The reversal of 225834925991 is 199529438522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225834925991 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 225834925991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225834925993) 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, 4341821 + ... + 4393526.

It is an arithmetic number, because the mean of its divisors is an integer number (28617000048).

Almost surely, 2^225834925991 is an apocalyptic number.

225834925991 is a deficient number, since it is larger than the sum of its proper divisors (3101074393).

225834925991 is a wasteful number, since it uses less digits than its factorization.

225834925991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735701.

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

The spelling of 225834925991 in words is "two hundred twenty-five billion, eight hundred thirty-four million, nine hundred twenty-five thousand, nine hundred ninety-one".