51325233321 has 8 divisors (see below), whose sum is σ = 68570788000. Its totient is φ = 34148250432.

The previous prime is 51325233259. The next prime is 51325233343. The reversal of 51325233321 is 12333252315.

It is a happy number.

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

It is not a de Polignac number, because 51325233321 - 2⁹ = 51325232809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51325233371) 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, 17141200 + ... + 17144193.

It is an arithmetic number, because the mean of its divisors is an integer number (8571348500).

Almost surely, 2^51325233321 is an apocalyptic number.

It is an amenable number.

51325233321 is a deficient number, since it is larger than the sum of its proper divisors (17245554679).

51325233321 is a wasteful number, since it uses less digits than its factorization.

51325233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34285895.

The product of its digits is 16200, while the sum is 30.

Adding to 51325233321 its reverse (12333252315), we get a palindrome (63658485636).

The spelling of 51325233321 in words is "fifty-one billion, three hundred twenty-five million, two hundred thirty-three thousand, three hundred twenty-one".