51775135 has 4 divisors (see below), whose sum is σ = 62130168. Its totient is φ = 41420104.

The previous prime is 51775123. The next prime is 51775193. The reversal of 51775135 is 53157715.

51775135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51775135 - 2⁵ = 51775103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51775135.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5177509 + ... + 5177518.

It is an arithmetic number, because the mean of its divisors is an integer number (15532542).

Almost surely, 2^51775135 is an apocalyptic number.

51775135 is a deficient number, since it is larger than the sum of its proper divisors (10355033).

51775135 is a wasteful number, since it uses less digits than its factorization.

51775135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355032.

The product of its digits is 18375, while the sum is 34.

The square root of 51775135 is about 7195.4940761563. The cubic root of 51775135 is about 372.7123183390.

The spelling of 51775135 in words is "fifty-one million, seven hundred seventy-five thousand, one hundred thirty-five".