51670285 has 8 divisors (see below), whose sum is σ = 62701560. Its totient is φ = 40871424.

The previous prime is 51670277. The next prime is 51670303. The reversal of 51670285 is 58207615.

It can be written as a sum of positive squares in 4 ways, for example, as 933156 + 50737129 = 966^2 + 7123^2 .

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 51670285 - 2³ = 51670277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51670285.

It is a congruent 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, 57612 + ... + 58501.

It is an arithmetic number, because the mean of its divisors is an integer number (7837695).

Almost surely, 2^51670285 is an apocalyptic number.

It is an amenable number.

51670285 is a deficient number, since it is larger than the sum of its proper divisors (11031275).

51670285 is a wasteful number, since it uses less digits than its factorization.

51670285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116207.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 51670285 is about 7188.2045741618. The cubic root of 51670285 is about 372.4605546568.

The spelling of 51670285 in words is "fifty-one million, six hundred seventy thousand, two hundred eighty-five".