51026515620 has 48 divisors (see below), whose sum is σ = 142914202368. Its totient is φ = 13603265280.

The previous prime is 51026515571. The next prime is 51026515627. The reversal of 51026515620 is 2651562015.

It is not an unprimeable number, because it can be changed into a prime (51026515627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 100752 + ... + 334968.

It is an arithmetic number, because the mean of its divisors is an integer number (2977379216).

Almost surely, 2^51026515620 is an apocalyptic number.

It is an amenable number.

51026515620 is an abundant number, since it is smaller than the sum of its proper divisors (91887686748).

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

51026515620 is a wasteful number, since it uses less digits than its factorization.

51026515620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237860 (or 237858 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 51026515620 in words is "fifty-one billion, twenty-six million, five hundred fifteen thousand, six hundred twenty".