51787043 has 16 divisors (see below), whose sum is σ = 65214720. Its totient is φ = 39948000.

The previous prime is 51787033. The next prime is 51787079. The reversal of 51787043 is 34078715.

It is a cyclic number.

It is not a de Polignac number, because 51787043 - 2²⁴ = 35009827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51786994 and 51787012.

It is not an unprimeable number, because it can be changed into a prime (51787033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4448 + ... + 11106.

It is an arithmetic number, because the mean of its divisors is an integer number (4075920).

Almost surely, 2^51787043 is an apocalyptic number.

51787043 is a deficient number, since it is larger than the sum of its proper divisors (13427677).

51787043 is a wasteful number, since it uses less digits than its factorization.

51787043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 51787043 is about 7196.3214908730. The cubic root of 51787043 is about 372.7408900853.

It can be divided in two parts, 5178 and 7043, that added together give a palindrome (12221).

The spelling of 51787043 in words is "fifty-one million, seven hundred eighty-seven thousand, forty-three".