51220600050 has 96 divisors (see below), whose sum is σ = 128053411200. Its totient is φ = 13548902400.

The previous prime is 51220600043. The next prime is 51220600063. The reversal of 51220600050 is 5000602215.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10534620 + ... + 10539480.

It is an arithmetic number, because the mean of its divisors is an integer number (1333889700).

Almost surely, 2^51220600050 is an apocalyptic number.

51220600050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51220600050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64026705600).

51220600050 is an abundant number, since it is smaller than the sum of its proper divisors (76832811150).

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

51220600050 is a wasteful number, since it uses less digits than its factorization.

51220600050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428 (or 5423 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 51220600050 in words is "fifty-one billion, two hundred twenty million, six hundred thousand, fifty".