51325121 has 8 divisors (see below), whose sum is σ = 53870400. Its totient is φ = 48806032.

The previous prime is 51325111. The next prime is 51325129. The reversal of 51325121 is 12152315.

It is a happy number.

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-51325121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51325093 and 51325102.

It is not an unprimeable number, because it can be changed into a prime (51325129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2471 + ... + 10428.

It is an arithmetic number, because the mean of its divisors is an integer number (6733800).

Almost surely, 2^51325121 is an apocalyptic number.

It is an amenable number.

51325121 is a deficient number, since it is larger than the sum of its proper divisors (2545279).

51325121 is a wasteful number, since it uses less digits than its factorization.

51325121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13095.

The product of its digits is 300, while the sum is 20.

The square root of 51325121 is about 7164.1552886576. The cubic root of 51325121 is about 371.6293399163.

Adding to 51325121 its reverse (12152315), we get a palindrome (63477436).

The spelling of 51325121 in words is "fifty-one million, three hundred twenty-five thousand, one hundred twenty-one".