7528564 has 6 divisors (see below), whose sum is σ = 13174994. Its totient is φ = 3764280.

The previous prime is 7528553. The next prime is 7528607. The reversal of 7528564 is 4658257.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7518564 + 10000 = 2742^2 + 100^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 941067 + ... + 941074.

Almost surely, 2^7528564 is an apocalyptic number.

It is an amenable number.

7528564 is a deficient number, since it is larger than the sum of its proper divisors (5646430).

7528564 is a wasteful number, since it uses less digits than its factorization.

7528564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882145 (or 1882143 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 7528564 is about 2743.8228805810. The cubic root of 7528564 is about 195.9915656512.

It can be divided in two parts, 752 and 8564, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 7528564 in words is "seven million, five hundred twenty-eight thousand, five hundred sixty-four".