51024168 has 112 divisors (see below), whose sum is σ = 154703220. Its totient is φ = 15676416.

The previous prime is 51024163. The next prime is 51024227. The reversal of 51024168 is 86142015.

It can be written as a sum of positive squares in 2 ways, for example, as 47032164 + 3992004 = 6858^2 + 1998^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51024161) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 75480 + ... + 76152.

Almost surely, 2^51024168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51024168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77351610).

51024168 is an abundant number, since it is smaller than the sum of its proper divisors (103679052).

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

51024168 is a wasteful number, since it uses less digits than its factorization.

51024168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 51024168 is about 7143.1203265800. The cubic root of 51024168 is about 370.9015463234.

The spelling of 51024168 in words is "fifty-one million, twenty-four thousand, one hundred sixty-eight".