51510420311 has 8 divisors (see below), whose sum is σ = 58908336000. Its totient is φ = 44122325688.

The previous prime is 51510420301. The next prime is 51510420371. The reversal of 51510420311 is 11302401515.

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

It is not a de Polignac number, because 51510420311 - 2¹⁰ = 51510419287 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 (51510420301) 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, 2444021 + ... + 2465006.

It is an arithmetic number, because the mean of its divisors is an integer number (7363542000).

Almost surely, 2^51510420311 is an apocalyptic number.

51510420311 is a deficient number, since it is larger than the sum of its proper divisors (7397915689).

51510420311 is a wasteful number, since it uses less digits than its factorization.

51510420311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910533.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 51510420311 its reverse (11302401515), we get a palindrome (62812821826).

The spelling of 51510420311 in words is "fifty-one billion, five hundred ten million, four hundred twenty thousand, three hundred eleven".