75005052503 has 4 divisors (see below), whose sum is σ = 75152410680. Its totient is φ = 74857694328.

The previous prime is 75005052491. The next prime is 75005052523. The reversal of 75005052503 is 30525050057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30525050057 = 29 ⋅1052587933.

It is a cyclic number.

It is not a de Polignac number, because 75005052503 - 2⁶ = 75005052439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75005052503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75005052523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73678325 + ... + 73679342.

It is an arithmetic number, because the mean of its divisors is an integer number (18788102670).

Almost surely, 2^75005052503 is an apocalyptic number.

75005052503 is a deficient number, since it is larger than the sum of its proper divisors (147358177).

75005052503 is a wasteful number, since it uses less digits than its factorization.

75005052503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147358176.

The product of its (nonzero) digits is 26250, while the sum is 32.

The spelling of 75005052503 in words is "seventy-five billion, five million, fifty-two thousand, five hundred three".