5191888 has 40 divisors (see below), whose sum is σ = 10980200. Its totient is φ = 2363904.

The previous prime is 5191873. The next prime is 5191909. The reversal of 5191888 is 8881915.

It can be written as a sum of positive squares in 4 ways, for example, as 1459264 + 3732624 = 1208^2 + 1932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5191888.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22558 + ... + 22786.

It is an arithmetic number, because the mean of its divisors is an integer number (274505).

Almost surely, 2^5191888 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 5191888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5490100).

5191888 is an abundant number, since it is smaller than the sum of its proper divisors (5788312).

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

5191888 is a wasteful number, since it uses less digits than its factorization.

5191888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 353 counting only the distinct ones).

The product of its digits is 23040, while the sum is 40.

The square root of 5191888 is about 2278.5714823108. The cubic root of 5191888 is about 173.1576853144.

The spelling of 5191888 in words is "five million, one hundred ninety-one thousand, eight hundred eighty-eight".