51670933 has 8 divisors (see below), whose sum is σ = 52659288. Its totient is φ = 50690304.

The previous prime is 51670909. The next prime is 51670963. The reversal of 51670933 is 33907615.

It can be written as a sum of positive squares in 4 ways, for example, as 19158129 + 32512804 = 4377^2 + 5702^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51670933 - 2²¹ = 49573781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51670963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12585 + ... + 16177.

It is an arithmetic number, because the mean of its divisors is an integer number (6582411).

Almost surely, 2^51670933 is an apocalyptic number.

It is an amenable number.

51670933 is a deficient number, since it is larger than the sum of its proper divisors (988355).

51670933 is a wasteful number, since it uses less digits than its factorization.

51670933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 51670933 is about 7188.2496478628. The cubic root of 51670933 is about 372.4621116667.

The spelling of 51670933 in words is "fifty-one million, six hundred seventy thousand, nine hundred thirty-three".