51017106 has 32 divisors (see below), whose sum is σ = 118528128. Its totient is φ = 14336640.

The previous prime is 51017101. The next prime is 51017107. The reversal of 51017106 is 60171015.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 7395 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (3704004).

Almost surely, 2^51017106 is an apocalyptic number.

51017106 is an abundant number, since it is smaller than the sum of its proper divisors (67511022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51017106 is a wasteful number, since it uses less digits than its factorization.

51017106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19986.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 51017106 is about 7142.6259876883. The cubic root of 51017106 is about 370.8844339910.

The spelling of 51017106 in words is "fifty-one million, seventeen thousand, one hundred six".