51798085 has 12 divisors (see below), whose sum is σ = 65603628. Its totient is φ = 39256128.

The previous prime is 51798083. The next prime is 51798091. The reversal of 51798085 is 58089715.

It can be written as a sum of positive squares in 2 ways, for example, as 10556001 + 41242084 = 3249^2 + 6422^2 .

It is not a de Polignac number, because 51798085 - 2¹ = 51798083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51798083) 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, 12544 + ... + 16153.

It is an arithmetic number, because the mean of its divisors is an integer number (5466969).

Almost surely, 2^51798085 is an apocalyptic number.

It is an amenable number.

51798085 is a deficient number, since it is larger than the sum of its proper divisors (13805543).

51798085 is a wasteful number, since it uses less digits than its factorization.

51798085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28740 (or 28721 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 51798085 is about 7197.0886475018. The cubic root of 51798085 is about 372.7673800603.

The spelling of 51798085 in words is "fifty-one million, seven hundred ninety-eight thousand, eighty-five".