51040043 has 8 divisors (see below), whose sum is σ = 53007360. Its totient is φ = 49092840.

The previous prime is 51040037. The next prime is 51040051. The reversal of 51040043 is 34004015.

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

It is not a de Polignac number, because 51040043 - 2⁸ = 51039787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51043043) 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, 248 + ... + 10106.

It is an arithmetic number, because the mean of its divisors is an integer number (6625920).

Almost surely, 2^51040043 is an apocalyptic number.

51040043 is a deficient number, since it is larger than the sum of its proper divisors (1967317).

51040043 is a wasteful number, since it uses less digits than its factorization.

51040043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 51040043 is about 7144.2314492183. The cubic root of 51040043 is about 370.9400081722.

Adding to 51040043 its reverse (34004015), we get a palindrome (85044058).

The spelling of 51040043 in words is "fifty-one million, forty thousand, forty-three".