51775853 has 4 divisors (see below), whose sum is σ = 51812160. Its totient is φ = 51739548.

The previous prime is 51775849. The next prime is 51775873. The reversal of 51775853 is 35857715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51775853 - 2² = 51775849 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 51775853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51775873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15923 + ... + 18896.

It is an arithmetic number, because the mean of its divisors is an integer number (12953040).

Almost surely, 2^51775853 is an apocalyptic number.

It is an amenable number.

51775853 is a deficient number, since it is larger than the sum of its proper divisors (36307).

51775853 is a wasteful number, since it uses less digits than its factorization.

51775853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36306.

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

The square root of 51775853 is about 7195.5439683182. The cubic root of 51775853 is about 372.7140412136.

The spelling of 51775853 in words is "fifty-one million, seven hundred seventy-five thousand, eight hundred fifty-three".