51017122 has 16 divisors (see below), whose sum is σ = 82688760. Its totient is φ = 23467392.

The previous prime is 51017107. The next prime is 51017129. The reversal of 51017122 is 22171015.

It can be written as a sum of positive squares in 4 ways, for example, as 13329801 + 37687321 = 3651^2 + 6139^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51017122.

It is not an unprimeable number, because it can be changed into a prime (51017129) 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, 5004 + ... + 11272.

Almost surely, 2^51017122 is an apocalyptic number.

51017122 is a deficient number, since it is larger than the sum of its proper divisors (31671638).

51017122 is a wasteful number, since it uses less digits than its factorization.

51017122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 51017122 is about 7142.6271077244. The cubic root of 51017122 is about 370.8844727633.

Adding to 51017122 its reverse (22171015), we get a palindrome (73188137).

The spelling of 51017122 in words is "fifty-one million, seventeen thousand, one hundred twenty-two".