75018750 has 48 divisors (see below), whose sum is σ = 187581744. Its totient is φ = 20000000.

The previous prime is 75018743. The next prime is 75018751. The reversal of 75018750 is 5781057.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75018751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16750 + ... + 20750.

It is an arithmetic number, because the mean of its divisors is an integer number (3907953).

Almost surely, 2^75018750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75018750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93790872).

75018750 is an abundant number, since it is smaller than the sum of its proper divisors (112562994).

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

75018750 is an equidigital number, since it uses as much as digits as its factorization.

75018750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031 (or 4011 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 75018750 is about 8661.3365019493. The cubic root of 75018750 is about 421.7514727504.

It can be divided in two parts, 750 and 18750, that multiplied together give a square (14062500 = 3750²).

The spelling of 75018750 in words is "seventy-five million, eighteen thousand, seven hundred fifty".