51105401300 has 36 divisors (see below), whose sum is σ = 110925934140. Its totient is φ = 20437144320.

The previous prime is 51105401273. The next prime is 51105401329. The reversal of 51105401300 is 310450115.

It can be written as a sum of positive squares in 6 ways, for example, as 4052850244 + 47052551056 = 63662^2 + 216916^2 .

It is a super-2 number, since 2×51105401300² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361106 + ... + 482294.

Almost surely, 2^51105401300 is an apocalyptic number.

51105401300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51105401300 is an abundant number, since it is smaller than the sum of its proper divisors (59820532840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51105401300 is a wasteful number, since it uses less digits than its factorization.

51105401300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125420 (or 125413 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 51105401300 its reverse (310450115), we get a palindrome (51415851415).

The spelling of 51105401300 in words is "fifty-one billion, one hundred five million, four hundred one thousand, three hundred".