75125556 has 120 divisors (see below), whose sum is σ = 217346976. Its totient is φ = 22438080.

The previous prime is 75125509. The next prime is 75125569. The reversal of 75125556 is 65552157.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 75125556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 381250 + ... + 381446.

Almost surely, 2^75125556 is an apocalyptic number.

It is a pronic number, being equal to 8667×8668.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75125556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108673488).

75125556 is an abundant number, since it is smaller than the sum of its proper divisors (142221420).

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

75125556 is a wasteful number, since it uses less digits than its factorization.

75125556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 320 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 75125556 is about 8667.4999855783. The cubic root of 75125556 is about 421.9515304124.

The spelling of 75125556 in words is "seventy-five million, one hundred twenty-five thousand, five hundred fifty-six".