51684034 has 4 divisors (see below), whose sum is σ = 77526054. Its totient is φ = 25842016.

The previous prime is 51683993. The next prime is 51684043. The reversal of 51684034 is 43048615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32455809 + 19228225 = 5697^2 + 4385^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 51683987 and 51684005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12921007 + ... + 12921010.

Almost surely, 2^51684034 is an apocalyptic number.

51684034 is a deficient number, since it is larger than the sum of its proper divisors (25842020).

51684034 is a wasteful number, since it uses less digits than its factorization.

51684034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25842019.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 51684034 is about 7189.1608689749. The cubic root of 51684034 is about 372.4935878661.

The spelling of 51684034 in words is "fifty-one million, six hundred eighty-four thousand, thirty-four".