51030863 has 8 divisors (see below), whose sum is σ = 55052256. Its totient is φ = 47023200.

The previous prime is 51030851. The next prime is 51030877. The reversal of 51030863 is 36803015.

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

It is a cyclic number.

It is not a de Polignac number, because 51030863 - 2⁶ = 51030799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51030823) 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, 5093 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (6881532).

Almost surely, 2^51030863 is an apocalyptic number.

51030863 is a deficient number, since it is larger than the sum of its proper divisors (4021393).

51030863 is a wasteful number, since it uses less digits than its factorization.

51030863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51030863 is about 7143.5889439413. The cubic root of 51030863 is about 370.9177678994.

Adding to 51030863 its reverse (36803015), we get a palindrome (87833878).

The spelling of 51030863 in words is "fifty-one million, thirty thousand, eight hundred sixty-three".