7528905 has 12 divisors (see below), whose sum is σ = 13050180. Its totient is φ = 4015392.

The previous prime is 7528903. The next prime is 7528907. The reversal of 7528905 is 5098257.

7528905 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7528903) and next prime (7528907).

It can be written as a sum of positive squares in 2 ways, for example, as 4875264 + 2653641 = 2208^2 + 1629^2 .

It is not a de Polignac number, because 7528905 - 2¹ = 7528903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7528905.

It is not an unprimeable number, because it can be changed into a prime (7528903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83610 + ... + 83699.

It is an arithmetic number, because the mean of its divisors is an integer number (1087515).

Almost surely, 2^7528905 is an apocalyptic number.

It is an amenable number.

7528905 is a deficient number, since it is larger than the sum of its proper divisors (5521275).

7528905 is a wasteful number, since it uses less digits than its factorization.

7528905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167320 (or 167317 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 7528905 is about 2743.8850194569. The cubic root of 7528905 is about 195.9945246978.

The spelling of 7528905 in words is "seven million, five hundred twenty-eight thousand, nine hundred five".