51045888 has 80 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 16828416.

The previous prime is 51045847. The next prime is 51045889. The reversal of 51045888 is 88854015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045889) 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, 256413 + ... + 256611.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640).

Almost surely, 2^51045888 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 51045888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68745600).

51045888 is an abundant number, since it is smaller than the sum of its proper divisors (86445312).

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

51045888 is a wasteful number, since it uses less digits than its factorization.

51045888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 51045888 is about 7144.6405088010. The cubic root of 51045888 is about 370.9541673922.

The spelling of 51045888 in words is "fifty-one million, forty-five thousand, eight hundred eighty-eight".