51042105 has 24 divisors (see below), whose sum is σ = 88845120. Its totient is φ = 27108000.

The previous prime is 51042053. The next prime is 51042149. The reversal of 51042105 is 50124015.

It is not a de Polignac number, because 51042105 - 2¹⁷ = 50911033 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9036 + ... + 13554.

It is an arithmetic number, because the mean of its divisors is an integer number (3701880).

Almost surely, 2^51042105 is an apocalyptic number.

It is an amenable number.

51042105 is a deficient number, since it is larger than the sum of its proper divisors (37803015).

51042105 is a wasteful number, since it uses less digits than its factorization.

51042105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781 (or 4778 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 51042105 is about 7144.3757599947. The cubic root of 51042105 is about 370.9450033875.

The spelling of 51042105 in words is "fifty-one million, forty-two thousand, one hundred five".