7520003 has 4 divisors (see below), whose sum is σ = 7525848. Its totient is φ = 7514160.

The previous prime is 7519999. The next prime is 7520017. The reversal of 7520003 is 3000257.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7520003 - 2² = 7519999 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7520063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (1881462).

Almost surely, 2^7520003 is an apocalyptic number.

7520003 is a deficient number, since it is larger than the sum of its proper divisors (5845).

7520003 is a wasteful number, since it uses less digits than its factorization.

7520003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 7520003 is about 2742.2623871541. The cubic root of 7520003 is about 195.9172477959.

The spelling of 7520003 in words is "seven million, five hundred twenty thousand, three".