51634858 has 16 divisors (see below), whose sum is σ = 86292864. Its totient is φ = 22970560.

The previous prime is 51634841. The next prime is 51634859. The reversal of 51634858 is 85843615.

51634858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51634858.

It is not an unprimeable number, because it can be changed into a prime (51634859) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23935 + ... + 26002.

It is an arithmetic number, because the mean of its divisors is an integer number (5393304).

Almost surely, 2^51634858 is an apocalyptic number.

51634858 is a deficient number, since it is larger than the sum of its proper divisors (34658006).

51634858 is a wasteful number, since it uses less digits than its factorization.

51634858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49997.

The product of its digits is 115200, while the sum is 40.

The square root of 51634858 is about 7185.7399062310. The cubic root of 51634858 is about 372.3754110912.

The spelling of 51634858 in words is "fifty-one million, six hundred thirty-four thousand, eight hundred fifty-eight".