51636230 has 16 divisors (see below), whose sum is σ = 94333680. Its totient is φ = 20345952.

The previous prime is 51636227. The next prime is 51636239. The reversal of 51636230 is 3263615.

It is a super-2 number, since 2×51636230² = 5332600497225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51636230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51636239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37865 + ... + 39204.

It is an arithmetic number, because the mean of its divisors is an integer number (5895855).

Almost surely, 2^51636230 is an apocalyptic number.

51636230 is a deficient number, since it is larger than the sum of its proper divisors (42697450).

51636230 is a wasteful number, since it uses less digits than its factorization.

51636230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77143.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 51636230 is about 7185.8353724532. The cubic root of 51636230 is about 372.3787092155.

Adding to 51636230 its reverse (3263615), we get a palindrome (54899845).

The spelling of 51636230 in words is "fifty-one million, six hundred thirty-six thousand, two hundred thirty".