51050555000 has 40 divisors (see below), whose sum is σ = 119611462080. Its totient is φ = 20420220000.

The previous prime is 51050554979. The next prime is 51050555009. The reversal of 51050555000 is 55505015.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050555009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5100056 + ... + 5110055.

It is an arithmetic number, because the mean of its divisors is an integer number (2990286552).

Almost surely, 2^51050555000 is an apocalyptic number.

51050555000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51050555000 is an abundant number, since it is smaller than the sum of its proper divisors (68560907080).

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

51050555000 is a wasteful number, since it uses less digits than its factorization.

51050555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210137 (or 10210118 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 51050555000 in words is "fifty-one billion, fifty million, five hundred fifty-five thousand".