51043042 has 4 divisors (see below), whose sum is σ = 76564566. Its totient is φ = 25521520.

The previous prime is 51043039. The next prime is 51043043. The reversal of 51043042 is 24034015.

51043042 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: 24034015 = 5 ⋅4806803.

It can be written as a sum of positive squares in only one way, i.e., 47734281 + 3308761 = 6909^2 + 1819^2 .

It is a super-2 number, since 2×51043042² = 5210784273227528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51043043) 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 as a sum of consecutive naturals, namely, 12760759 + ... + 12760762.

Almost surely, 2^51043042 is an apocalyptic number.

51043042 is a deficient number, since it is larger than the sum of its proper divisors (25521524).

51043042 is a wasteful number, since it uses less digits than its factorization.

51043042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25521523.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 51043042 is about 7144.4413357519. The cubic root of 51043042 is about 370.9472732347.

Adding to 51043042 its reverse (24034015), we get a palindrome (75077057).

The spelling of 51043042 in words is "fifty-one million, forty-three thousand, forty-two".