7525905 has 16 divisors (see below), whose sum is σ = 12154560. Its totient is φ = 3976128.

The previous prime is 7525891. The next prime is 7525907. The reversal of 7525905 is 5095257.

It is a de Polignac number, because none of the positive numbers 2^k-7525905 is a prime.

7525905 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7525907) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 667 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (759660).

Almost surely, 2^7525905 is an apocalyptic number.

It is an amenable number.

7525905 is a deficient number, since it is larger than the sum of its proper divisors (4628655).

7525905 is a wasteful number, since it uses less digits than its factorization.

7525905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 7525905 is about 2743.3382948517. The cubic root of 7525905 is about 195.9684889645.

The spelling of 7525905 in words is "seven million, five hundred twenty-five thousand, nine hundred five".