51094415520 has 192 divisors, whose sum is σ = 179024912640. Its totient is φ = 13610363904.

The previous prime is 51094415507. The next prime is 51094415557. The reversal of 51094415520 is 2551449015.

51094415520 is a `hidden beast` number, since 5 + 1 + 0 + 94 + 41 + 5 + 520 = 666.

It is a super-2 number, since 2×51094415520² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4301109 + ... + 4312971.

It is an arithmetic number, because the mean of its divisors is an integer number (932421420).

Almost surely, 2^51094415520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51094415520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89512456320).

51094415520 is an abundant number, since it is smaller than the sum of its proper divisors (127930497120).

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

51094415520 is a wasteful number, since it uses less digits than its factorization.

51094415520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12884 (or 12870 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 51094415520 in words is "fifty-one billion, ninety-four million, four hundred fifteen thousand, five hundred twenty".