51674691 has 8 divisors (see below), whose sum is σ = 70502080. Its totient is φ = 33648552.

The previous prime is 51674683. The next prime is 51674717. The reversal of 51674691 is 19647615.

51674691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51674691 - 2³ = 51674683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51674641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200161 + ... + 200418.

It is an arithmetic number, because the mean of its divisors is an integer number (8812760).

Almost surely, 2^51674691 is an apocalyptic number.

51674691 is a deficient number, since it is larger than the sum of its proper divisors (18827389).

51674691 is a wasteful number, since it uses less digits than its factorization.

51674691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400625.

The product of its digits is 45360, while the sum is 39.

The square root of 51674691 is about 7188.5110419335. The cubic root of 51674691 is about 372.4711411061.

The spelling of 51674691 in words is "fifty-one million, six hundred seventy-four thousand, six hundred ninety-one".