51806802 has 8 divisors (see below), whose sum is σ = 103613616. Its totient is φ = 17268932.

The previous prime is 51806791. The next prime is 51806813. The reversal of 51806802 is 20860815.

It is an interprime number because it is at equal distance from previous prime (51806791) and next prime (51806813).

It is a sphenic number, since it is the product of 3 distinct primes.

51806802 is an admirable number.

It is a super-3 number, since 3×51806802³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51806802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4317228 + ... + 4317239.

It is an arithmetic number, because the mean of its divisors is an integer number (12951702).

Almost surely, 2^51806802 is an apocalyptic number.

51806802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51806802 is a wasteful number, since it uses less digits than its factorization.

51806802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634472.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 51806802 is about 7197.6942141216. The cubic root of 51806802 is about 372.7882896556.

The spelling of 51806802 in words is "fifty-one million, eight hundred six thousand, eight hundred two".