51375875 has 8 divisors (see below), whose sum is σ = 64117248. Its totient is φ = 41100600.

The previous prime is 51375851. The next prime is 51375913. The reversal of 51375875 is 57857315.

51375875 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 51375875 - 2⁶ = 51375811 is a prime.

It is a super-3 number, since 3×51375875³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian 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, 205379 + ... + 205628.

It is an arithmetic number, because the mean of its divisors is an integer number (8014656).

Almost surely, 2^51375875 is an apocalyptic number.

51375875 is a deficient number, since it is larger than the sum of its proper divisors (12741373).

51375875 is an equidigital number, since it uses as much as digits as its factorization.

51375875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411022 (or 411012 counting only the distinct ones).

The product of its digits is 147000, while the sum is 41.

The square root of 51375875 is about 7167.6966314151. The cubic root of 51375875 is about 371.7517975699.

The spelling of 51375875 in words is "fifty-one million, three hundred seventy-five thousand, eight hundred seventy-five".