51045043 has 4 divisors (see below), whose sum is σ = 58337200. Its totient is φ = 43752888.

The previous prime is 51045037. The next prime is 51045079. The reversal of 51045043 is 34054015.

51045043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34054015 = 5 ⋅6810803.

It is a cyclic number.

It is not a de Polignac number, because 51045043 - 2⁵ = 51045011 is a prime.

It is a super-3 number, since 3×51045043³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51045023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3646068 + ... + 3646081.

It is an arithmetic number, because the mean of its divisors is an integer number (14584300).

Almost surely, 2^51045043 is an apocalyptic number.

51045043 is a deficient number, since it is larger than the sum of its proper divisors (7292157).

51045043 is an equidigital number, since it uses as much as digits as its factorization.

51045043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7292156.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51045043 is about 7144.5813733206. The cubic root of 51045043 is about 370.9521204888.

Adding to 51045043 its reverse (34054015), we get a palindrome (85099058).

The spelling of 51045043 in words is "fifty-one million, forty-five thousand, forty-three".