51842986 has 16 divisors (see below), whose sum is σ = 83865600. Its totient is φ = 23893488.

The previous prime is 51842977. The next prime is 51843017. The reversal of 51842986 is 68924815.

It is a happy 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, 32475 + ... + 34033.

It is an arithmetic number, because the mean of its divisors is an integer number (5241600).

Almost surely, 2^51842986 is an apocalyptic number.

51842986 is a deficient number, since it is larger than the sum of its proper divisors (32022614).

51842986 is a wasteful number, since it uses less digits than its factorization.

51842986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853.

The product of its digits is 138240, while the sum is 43.

The square root of 51842986 is about 7200.2073581252. The cubic root of 51842986 is about 372.8750596791.

The spelling of 51842986 in words is "fifty-one million, eight hundred forty-two thousand, nine hundred eighty-six".