51304144331 has 16 divisors (see below), whose sum is σ = 59267593728. Its totient is φ = 43891267200.

The previous prime is 51304144321. The next prime is 51304144351. The reversal of 51304144331 is 13344140315.

It is a happy number.

It is not a de Polignac number, because 51304144331 - 2³⁰ = 50230402507 is a prime.

It is a super-2 number, since 2×51304144331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51304144294 and 51304144303.

It is not an unprimeable number, because it can be changed into a prime (51304144321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2792666 + ... + 2810976.

It is an arithmetic number, because the mean of its divisors is an integer number (3704224608).

Almost surely, 2^51304144331 is an apocalyptic number.

51304144331 is a deficient number, since it is larger than the sum of its proper divisors (7963449397).

51304144331 is a wasteful number, since it uses less digits than its factorization.

51304144331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33322.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 51304144331 its reverse (13344140315), we get a palindrome (64648284646).

The spelling of 51304144331 in words is "fifty-one billion, three hundred four million, one hundred forty-four thousand, three hundred thirty-one".