51436875 has 40 divisors (see below), whose sum is σ = 97968640. Its totient is φ = 23508000.

The previous prime is 51436867. The next prime is 51436907. The reversal of 51436875 is 57863415.

51436875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51436875 - 2³ = 51436867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11166 + ... + 15084.

It is an arithmetic number, because the mean of its divisors is an integer number (2449216).

Almost surely, 2^51436875 is an apocalyptic number.

51436875 is a deficient number, since it is larger than the sum of its proper divisors (46531765).

51436875 is an equidigital number, since it uses as much as digits as its factorization.

51436875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949 (or 3934 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 51436875 is about 7171.9505714973. The cubic root of 51436875 is about 371.8988697811.

The spelling of 51436875 in words is "fifty-one million, four hundred thirty-six thousand, eight hundred seventy-five".