51005718 has 24 divisors (see below), whose sum is σ = 111914400. Its totient is φ = 16786224.

The previous prime is 51005711. The next prime is 51005737. The reversal of 51005718 is 81750015.

It is a junction number, because it is equal to n+sod(n) for n = 51005691 and 51005700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51005711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16513 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (4663100).

Almost surely, 2^51005718 is an apocalyptic number.

51005718 is an abundant number, since it is smaller than the sum of its proper divisors (60908682).

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

51005718 is a wasteful number, since it uses less digits than its factorization.

51005718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35956 (or 35953 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 51005718 is about 7141.8287573982. The cubic root of 51005718 is about 370.8568357560.

The spelling of 51005718 in words is "fifty-one million, five thousand, seven hundred eighteen".