51876805 has 8 divisors (see below), whose sum is σ = 62665344. Its totient is φ = 41226000.

The previous prime is 51876763. The next prime is 51876817. The reversal of 51876805 is 50867815.

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

It is not a de Polignac number, because 51876805 - 2⁷ = 51876677 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 33601 + ... + 35110.

It is an arithmetic number, because the mean of its divisors is an integer number (7833168).

Almost surely, 2^51876805 is an apocalyptic number.

It is an amenable number.

51876805 is a deficient number, since it is larger than the sum of its proper divisors (10788539).

51876805 is a wasteful number, since it uses less digits than its factorization.

51876805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68867.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 51876805 is about 7202.5554492833. Note that the first 3 decimals coincide. The cubic root of 51876805 is about 372.9561218861.

The spelling of 51876805 in words is "fifty-one million, eight hundred seventy-six thousand, eight hundred five".