51170827 has 8 divisors (see below), whose sum is σ = 52664832. Its totient is φ = 49693800.

The previous prime is 51170809. The next prime is 51170831. The reversal of 51170827 is 72807115.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51170827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51170627) 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, 2002 + ... + 10312.

It is an arithmetic number, because the mean of its divisors is an integer number (6583104).

Almost surely, 2^51170827 is an apocalyptic number.

51170827 is a deficient number, since it is larger than the sum of its proper divisors (1494005).

51170827 is a wasteful number, since it uses less digits than its factorization.

51170827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 51170827 is about 7153.3787121891. The cubic root of 51170827 is about 371.2565677321.

The spelling of 51170827 in words is "fifty-one million, one hundred seventy thousand, eight hundred twenty-seven".