51010102052 has 96 divisors (see below), whose sum is σ = 115522412544. Its totient is φ = 19154678400.

The previous prime is 51010101997. The next prime is 51010102081. The reversal of 51010102052 is 25020101015.

It is a super-2 number, since 2×51010102052² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51010102052.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1073477 + ... + 1119987.

It is an arithmetic number, because the mean of its divisors is an integer number (1203358464).

Almost surely, 2^51010102052 is an apocalyptic number.

51010102052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51010102052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57761206272).

51010102052 is an abundant number, since it is smaller than the sum of its proper divisors (64512310492).

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

51010102052 is a wasteful number, since it uses less digits than its factorization.

51010102052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46689 (or 46687 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 51010102052 its reverse (25020101015), we get a palindrome (76030203067).

The spelling of 51010102052 in words is "fifty-one billion, ten million, one hundred two thousand, fifty-two".