51463081 has 8 divisors (see below), whose sum is σ = 53323200. Its totient is φ = 49608720.

The previous prime is 51463057. The next prime is 51463099. The reversal of 51463081 is 18036415.

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-51463081 is a prime.

It is a super-2 number, since 2×51463081² = 5296897412025122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51463021) 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, 25686 + ... + 27616.

It is an arithmetic number, because the mean of its divisors is an integer number (6665400).

Almost surely, 2^51463081 is an apocalyptic number.

It is an amenable number.

51463081 is a deficient number, since it is larger than the sum of its proper divisors (1860119).

51463081 is a wasteful number, since it uses less digits than its factorization.

51463081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51463081 is about 7173.7773174249. Note that the first 3 decimals coincide. The cubic root of 51463081 is about 371.9620172612.

Adding to 51463081 its reverse (18036415), we get a palindrome (69499496).

The spelling of 51463081 in words is "fifty-one million, four hundred sixty-three thousand, eighty-one".