51634285 has 4 divisors (see below), whose sum is σ = 61961148. Its totient is φ = 41307424.

The previous prime is 51634279. The next prime is 51634301. The reversal of 51634285 is 58243615.

51634285 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 can be written as a sum of positive squares in 2 ways, for example, as 7584516 + 44049769 = 2754^2 + 6637^2 .

It is a cyclic number.

It is not a de Polignac number, because 51634285 - 2⁷ = 51634157 is a prime.

It is a super-2 number, since 2×51634285² = 5332198774922450, which contains 22 as substring.

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 51634285.

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, 5163424 + ... + 5163433.

It is an arithmetic number, because the mean of its divisors is an integer number (15490287).

Almost surely, 2^51634285 is an apocalyptic number.

It is an amenable number.

51634285 is a deficient number, since it is larger than the sum of its proper divisors (10326863).

51634285 is a wasteful number, since it uses less digits than its factorization.

51634285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326862.

The product of its digits is 28800, while the sum is 34.

The square root of 51634285 is about 7185.7000354871. The cubic root of 51634285 is about 372.3740336502.

The spelling of 51634285 in words is "fifty-one million, six hundred thirty-four thousand, two hundred eighty-five".