7500513 has 4 divisors (see below), whose sum is σ = 10000688. Its totient is φ = 5000340.

The previous prime is 7500491. The next prime is 7500539. The reversal of 7500513 is 3150057.

It is a happy number.

7500513 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7500513 - 2¹⁴ = 7484129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7500513.

It is not an unprimeable number, because it can be changed into a prime (7500013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250083 + ... + 1250088.

It is an arithmetic number, because the mean of its divisors is an integer number (2500172).

Almost surely, 2^7500513 is an apocalyptic number.

It is an amenable number.

7500513 is a deficient number, since it is larger than the sum of its proper divisors (2500175).

7500513 is a wasteful number, since it uses less digits than its factorization.

7500513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500174.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 7500513 is about 2738.7064464816. The cubic root of 7500513 is about 195.7478449058.

The spelling of 7500513 in words is "seven million, five hundred thousand, five hundred thirteen".