75030500 has 24 divisors (see below), whose sum is σ = 163867704. Its totient is φ = 30012000.

The previous prime is 75030491. The next prime is 75030523. The reversal of 75030500 is 503057.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 75030244 = 16^2 + 8662^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74531 + ... + 75530.

It is an arithmetic number, because the mean of its divisors is an integer number (6827821).

Almost surely, 2^75030500 is an apocalyptic number.

It is an amenable number.

75030500 is an abundant number, since it is smaller than the sum of its proper divisors (88837204).

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

75030500 is a wasteful number, since it uses less digits than its factorization.

75030500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150080 (or 150068 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 20.

The square root of 75030500 is about 8662.0147771751. The cubic root of 75030500 is about 421.7734908952.

Adding to 75030500 its reverse (503057), we get a palindrome (75533557).

The spelling of 75030500 in words is "seventy-five million, thirty thousand, five hundred".