51805083 has 16 divisors (see below), whose sum is σ = 75476736. Its totient is φ = 31345440.

The previous prime is 51805051. The next prime is 51805093. The reversal of 51805083 is 38050815.

It is a happy number.

It is not a de Polignac number, because 51805083 - 2⁵ = 51805051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51805083.

It is not an unprimeable number, because it can be changed into a prime (51805093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31641 + ... + 33237.

It is an arithmetic number, because the mean of its divisors is an integer number (4717296).

Almost surely, 2^51805083 is an apocalyptic number.

51805083 is a deficient number, since it is larger than the sum of its proper divisors (23671653).

51805083 is a wasteful number, since it uses less digits than its factorization.

51805083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 51805083 is about 7197.5747998892. The cubic root of 51805083 is about 372.7841664509.

Adding to 51805083 its reverse (38050815), we get a palindrome (89855898).

The spelling of 51805083 in words is "fifty-one million, eight hundred five thousand, eighty-three".