51005842 has 8 divisors (see below), whose sum is σ = 80535600. Its totient is φ = 24160644.

The previous prime is 51005813. The next prime is 51005849. The reversal of 51005842 is 24850015.

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

It is not an unprimeable number, because it can be changed into a prime (51005849) 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, 671092 + ... + 671167.

It is an arithmetic number, because the mean of its divisors is an integer number (10066950).

Almost surely, 2^51005842 is an apocalyptic number.

51005842 is a deficient number, since it is larger than the sum of its proper divisors (29529758).

51005842 is a wasteful number, since it uses less digits than its factorization.

51005842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342280.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 51005842 is about 7141.8374386428. The cubic root of 51005842 is about 370.8571362858.

Adding to 51005842 its reverse (24850015), we get a palindrome (75855857).

The spelling of 51005842 in words is "fifty-one million, five thousand, eight hundred forty-two".