51009750900 has 108 divisors (see below), whose sum is σ = 161439826912. Its totient is φ = 13470511680.

The previous prime is 51009750881. The next prime is 51009750917. The reversal of 51009750900 is 905790015.

It is a happy number.

51009750900 is a `hidden beast` number, since 510 + 0 + 9 + 7 + 50 + 90 + 0 = 666.

51009750900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 182434 + ... + 367833.

Almost surely, 2^51009750900 is an apocalyptic number.

51009750900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51009750900 is an abundant number, since it is smaller than the sum of its proper divisors (110430076012).

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

51009750900 is a wasteful number, since it uses less digits than its factorization.

51009750900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550390 (or 550380 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The spelling of 51009750900 in words is "fifty-one billion, nine million, seven hundred fifty thousand, nine hundred".