51636043 has 8 divisors (see below), whose sum is σ = 52390800. Its totient is φ = 50884608.

The previous prime is 51636023. The next prime is 51636121. The reversal of 51636043 is 34063615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51636043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51636023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63423 + ... + 64231.

It is an arithmetic number, because the mean of its divisors is an integer number (6548850).

Almost surely, 2^51636043 is an apocalyptic number.

51636043 is a deficient number, since it is larger than the sum of its proper divisors (754757).

51636043 is an equidigital number, since it uses as much as digits as its factorization.

51636043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 51636043 is about 7185.8223607323. The cubic root of 51636043 is about 372.3782596932.

Adding to 51636043 its reverse (34063615), we get a palindrome (85699658).

The spelling of 51636043 in words is "fifty-one million, six hundred thirty-six thousand, forty-three".