51031063 has 4 divisors (see below), whose sum is σ = 51057328. Its totient is φ = 51004800.

The previous prime is 51031031. The next prime is 51031073. The reversal of 51031063 is 36013015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51031063 - 2⁵ = 51031031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51031063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51031073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9963 + ... + 14188.

It is an arithmetic number, because the mean of its divisors is an integer number (12764332).

Almost surely, 2^51031063 is an apocalyptic number.

51031063 is a deficient number, since it is larger than the sum of its proper divisors (26265).

51031063 is a wasteful number, since it uses less digits than its factorization.

51031063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26264.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 51031063 is about 7143.6029424934. The cubic root of 51031063 is about 370.9182524653.

Adding to 51031063 its reverse (36013015), we get a palindrome (87044078).

The spelling of 51031063 in words is "fifty-one million, thirty-one thousand, sixty-three".