51807875 has 16 divisors (see below), whose sum is σ = 73894080. Its totient is φ = 35524800.

The previous prime is 51807869. The next prime is 51807893. The reversal of 51807875 is 57870815.

It is not a de Polignac number, because 51807875 - 2¹⁴ = 51791491 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28730 + ... + 30479.

It is an arithmetic number, because the mean of its divisors is an integer number (4618380).

Almost surely, 2^51807875 is an apocalyptic number.

51807875 is a deficient number, since it is larger than the sum of its proper divisors (22086205).

51807875 is an equidigital number, since it uses as much as digits as its factorization.

51807875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59231 (or 59221 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 41.

The square root of 51807875 is about 7197.7687514951. The cubic root of 51807875 is about 372.7908633143.

The spelling of 51807875 in words is "fifty-one million, eight hundred seven thousand, eight hundred seventy-five".