51301356100 has 18 divisors (see below), whose sum is σ = 111323942954. Its totient is φ = 20520542400.

The previous prime is 51301356097. The next prime is 51301356101. The reversal of 51301356100 is 165310315.

It can be written as a sum of positive squares in 3 ways, for example, as 8878539076 + 42422817024 = 94226^2 + 205968^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (51301356101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256506681 + ... + 256506880.

Almost surely, 2^51301356100 is an apocalyptic number.

51301356100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51301356100 is an abundant number, since it is smaller than the sum of its proper divisors (60022586854).

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

51301356100 is a wasteful number, since it uses less digits than its factorization.

51301356100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513013575 (or 513013568 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 51301356100 its reverse (165310315), we get a palindrome (51466666415).

The spelling of 51301356100 in words is "fifty-one billion, three hundred one million, three hundred fifty-six thousand, one hundred".