51878107 has 8 divisors (see below), whose sum is σ = 54012896. Its totient is φ = 49781952.

The previous prime is 51878093. The next prime is 51878111. The reversal of 51878107 is 70187815.

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 51878107 - 2⁷ = 51877979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (51878507) 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, 6903 + ... + 12304.

It is an arithmetic number, because the mean of its divisors is an integer number (6751612).

Almost surely, 2^51878107 is an apocalyptic number.

51878107 is a deficient number, since it is larger than the sum of its proper divisors (2134789).

51878107 is a wasteful number, since it uses less digits than its factorization.

51878107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19317.

The product of its (nonzero) digits is 15680, while the sum is 37.

The square root of 51878107 is about 7202.6458333032. The cubic root of 51878107 is about 372.9592420012.

The spelling of 51878107 in words is "fifty-one million, eight hundred seventy-eight thousand, one hundred seven".