7528537 has 2 divisors, whose sum is σ = 7528538. Its totient is φ = 7528536.

The previous prime is 7528531. The next prime is 7528553. The reversal of 7528537 is 7358257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4583881 + 2944656 = 2141^2 + 1716^2 .

It is a cyclic number.

It is not a de Polignac number, because 7528537 - 2³ = 7528529 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁶ + 5⁴ + 2²² + 8⁶ + 5⁹ + 3¹¹ + 7⁷ .

7528537 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7528496 and 7528505.

It is not a weakly prime, because it can be changed into another prime (7528531) 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 as a sum of consecutive naturals, namely, 3764268 + 3764269.

It is an arithmetic number, because the mean of its divisors is an integer number (3764269).

Almost surely, 2^7528537 is an apocalyptic number.

It is an amenable number.

7528537 is a deficient number, since it is larger than the sum of its proper divisors (1).

7528537 is an equidigital number, since it uses as much as digits as its factorization.

7528537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 7528537 is about 2743.8179604340. The cubic root of 7528537 is about 195.9913313534.

The spelling of 7528537 in words is "seven million, five hundred twenty-eight thousand, five hundred thirty-seven".