51894874 has 8 divisors (see below), whose sum is σ = 78130368. Its totient is φ = 25851420.

The previous prime is 51894853. The next prime is 51894881. The reversal of 51894874 is 47849815.

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

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, 47332 + ... + 48415.

It is an arithmetic number, because the mean of its divisors is an integer number (9766296).

Almost surely, 2^51894874 is an apocalyptic number.

51894874 is a deficient number, since it is larger than the sum of its proper divisors (26235494).

51894874 is a wasteful number, since it uses less digits than its factorization.

51894874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96020.

The product of its digits is 322560, while the sum is 46.

The square root of 51894874 is about 7203.8096865478. The cubic root of 51894874 is about 372.9994178056. Note that the first 3 decimals are identical.

The spelling of 51894874 in words is "fifty-one million, eight hundred ninety-four thousand, eight hundred seventy-four".