75387516 has 48 divisors (see below), whose sum is σ = 187810560. Its totient is φ = 23466240.

The previous prime is 75387493. The next prime is 75387551. The reversal of 75387516 is 61578357.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13860 + ... + 18516.

It is an arithmetic number, because the mean of its divisors is an integer number (3912720).

Almost surely, 2^75387516 is an apocalyptic number.

75387516 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75387516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93905280).

75387516 is an abundant number, since it is smaller than the sum of its proper divisors (112423044).

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

75387516 is a wasteful number, since it uses less digits than its factorization.

75387516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 4752 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 75387516 is about 8682.5984589868. The cubic root of 75387516 is about 422.4414045229.

The spelling of 75387516 in words is "seventy-five million, three hundred eighty-seven thousand, five hundred sixteen".