51017105 has 16 divisors (see below), whose sum is σ = 64157184. Its totient is φ = 38871360.

The previous prime is 51017101. The next prime is 51017107. The reversal of 51017105 is 50171015.

It is not a de Polignac number, because 51017105 - 2² = 51017101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51017101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30347 + ... + 31983.

It is an arithmetic number, because the mean of its divisors is an integer number (4009824).

Almost surely, 2^51017105 is an apocalyptic number.

It is an amenable number.

51017105 is a deficient number, since it is larger than the sum of its proper divisors (13140079).

51017105 is a wasteful number, since it uses less digits than its factorization.

51017105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 51017105 is about 7142.6259176860. The cubic root of 51017105 is about 370.8844315677.

The spelling of 51017105 in words is "fifty-one million, seventeen thousand, one hundred five".