51300039511 has 16 divisors (see below), whose sum is σ = 62488488960. Its totient is φ = 41110819200.

The previous prime is 51300039499. The next prime is 51300039517. The reversal of 51300039511 is 11593000315.

It is a cyclic number.

It is not a de Polignac number, because 51300039511 - 2¹³ = 51300031319 is a prime.

It is a super-2 number, since 2×51300039511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51300039511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51300039517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409491 + ... + 1445428.

It is an arithmetic number, because the mean of its divisors is an integer number (3905530560).

Almost surely, 2^51300039511 is an apocalyptic number.

51300039511 is a deficient number, since it is larger than the sum of its proper divisors (11188449449).

51300039511 is a wasteful number, since it uses less digits than its factorization.

51300039511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855094.

The product of its (nonzero) digits is 2025, while the sum is 28.

Adding to 51300039511 its reverse (11593000315), we get a palindrome (62893039826).

The spelling of 51300039511 in words is "fifty-one billion, three hundred million, thirty-nine thousand, five hundred eleven".