51353634 has 32 divisors (see below), whose sum is σ = 110142720. Its totient is φ = 15904512.

The previous prime is 51353629. The next prime is 51353671. The reversal of 51353634 is 43635315.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4872 + ... + 11244.

It is an arithmetic number, because the mean of its divisors is an integer number (3441960).

Almost surely, 2^51353634 is an apocalyptic number.

51353634 is an abundant number, since it is smaller than the sum of its proper divisors (58789086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51353634 is a wasteful number, since it uses less digits than its factorization.

51353634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474.

The product of its digits is 16200, while the sum is 30.

The square root of 51353634 is about 7166.1449887649. The cubic root of 51353634 is about 371.6981451171.

Adding to 51353634 its reverse (43635315), we get a palindrome (94988949).

The spelling of 51353634 in words is "fifty-one million, three hundred fifty-three thousand, six hundred thirty-four".