51118848 has 108 divisors (see below), whose sum is σ = 160866888. Its totient is φ = 15482880.

The previous prime is 51118829. The next prime is 51118849. The reversal of 51118848 is 84881115.

It is a happy number.

It is a super-2 number, since 2×51118848² = 5226273241694208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51118849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24336 + ... + 26352.

Almost surely, 2^51118848 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 51118848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80433444).

51118848 is an abundant number, since it is smaller than the sum of its proper divisors (109748040).

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

51118848 is a wasteful number, since it uses less digits than its factorization.

51118848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2033 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 51118848 is about 7149.7446108235. The cubic root of 51118848 is about 371.1308184588.

The spelling of 51118848 in words is "fifty-one million, one hundred eighteen thousand, eight hundred forty-eight".