51018338 has 16 divisors (see below), whose sum is σ = 89824704. Its totient is φ = 21273840.

The previous prime is 51018311. The next prime is 51018367. The reversal of 51018338 is 83381015.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51018338.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48728 + ... + 49763.

It is an arithmetic number, because the mean of its divisors is an integer number (5614044).

Almost surely, 2^51018338 is an apocalyptic number.

51018338 is a deficient number, since it is larger than the sum of its proper divisors (38806366).

51018338 is a wasteful number, since it uses less digits than its factorization.

51018338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98537.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 51018338 is about 7142.7122299586. The cubic root of 51018338 is about 370.8874194337.

The spelling of 51018338 in words is "fifty-one million, eighteen thousand, three hundred thirty-eight".