51862086 has 64 divisors (see below), whose sum is σ = 120000960. Its totient is φ = 16588800.

The previous prime is 51862067. The next prime is 51862127. The reversal of 51862086 is 68026815.

It is a happy number.

51862086 is a `hidden beast` number, since 518 + 62 + 0 + 86 = 666.

51862086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51862086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201670 + ... + 201926.

It is an arithmetic number, because the mean of its divisors is an integer number (1875015).

Almost surely, 2^51862086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51862086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60000480).

51862086 is an abundant number, since it is smaller than the sum of its proper divisors (68138874).

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

51862086 is a wasteful number, since it uses less digits than its factorization.

51862086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 51862086 is about 7201.5335866744. The cubic root of 51862086 is about 372.9208456169.

The spelling of 51862086 in words is "fifty-one million, eight hundred sixty-two thousand, eighty-six".