51304031511 has 8 divisors (see below), whose sum is σ = 68421863280. Its totient is φ = 34194443712.

The previous prime is 51304031497. The next prime is 51304031551. The reversal of 51304031511 is 11513040315.

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

It is not a de Polignac number, because 51304031511 - 2⁶ = 51304031447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51304031551) 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, 2046456 + ... + 2071373.

It is an arithmetic number, because the mean of its divisors is an integer number (8552732910).

Almost surely, 2^51304031511 is an apocalyptic number.

51304031511 is a deficient number, since it is larger than the sum of its proper divisors (17117831769).

51304031511 is a wasteful number, since it uses less digits than its factorization.

51304031511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121985.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 51304031511 its reverse (11513040315), we get a palindrome (62817071826).

It can be divided in two parts, 513040315 and 11, that multiplied together give a palindrome (5643443465).

The spelling of 51304031511 in words is "fifty-one billion, three hundred four million, thirty-one thousand, five hundred eleven".