7522505 has 4 divisors (see below), whose sum is σ = 9027012. Its totient is φ = 6018000.

The previous prime is 7522469. The next prime is 7522519. The reversal of 7522505 is 5052257.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4923961 + 2598544 = 2219^2 + 1612^2 .

It is not a de Polignac number, because 7522505 - 2²² = 3328201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752246 + ... + 752255.

It is an arithmetic number, because the mean of its divisors is an integer number (2256753).

Almost surely, 2^7522505 is an apocalyptic number.

It is an amenable number.

7522505 is a deficient number, since it is larger than the sum of its proper divisors (1504507).

7522505 is a wasteful number, since it uses less digits than its factorization.

7522505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504506.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 7522505 is about 2742.7185418850. The cubic root of 7522505 is about 195.9389734344.

The spelling of 7522505 in words is "seven million, five hundred twenty-two thousand, five hundred five".