51325344015421 has 8 divisors (see below), whose sum is σ = 58677700199040. Its totient is φ = 43978028877168.

The previous prime is 51325344015419. The next prime is 51325344015529. The reversal of 51325344015421 is 12451044352315.

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 51325344015421 - 2¹ = 51325344015419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51325344015721) 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, 1260239521 + ... + 1260280246.

It is an arithmetic number, because the mean of its divisors is an integer number (7334712524880).

Almost surely, 2^{51325344015421} is an apocalyptic number.

It is an amenable number.

51325344015421 is a deficient number, since it is larger than the sum of its proper divisors (7352356183619).

51325344015421 is a wasteful number, since it uses less digits than its factorization.

51325344015421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520522683.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 51325344015421 its reverse (12451044352315), we get a palindrome (63776388367736).

The spelling of 51325344015421 in words is "fifty-one trillion, three hundred twenty-five billion, three hundred forty-four million, fifteen thousand, four hundred twenty-one".