7536561 has 16 divisors (see below), whose sum is σ = 10272768. Its totient is φ = 4914000.

The previous prime is 7536541. The next prime is 7536577. The reversal of 7536561 is 1656357.

It is not a de Polignac number, because 7536561 - 2²¹ = 5439409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7536511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49836 + ... + 49986.

It is an arithmetic number, because the mean of its divisors is an integer number (642048).

Almost surely, 2^7536561 is an apocalyptic number.

It is an amenable number.

7536561 is a deficient number, since it is larger than the sum of its proper divisors (2736207).

7536561 is a wasteful number, since it uses less digits than its factorization.

7536561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its digits is 18900, while the sum is 33.

The square root of 7536561 is about 2745.2797671640. The cubic root of 7536561 is about 196.0609365575.

The spelling of 7536561 in words is "seven million, five hundred thirty-six thousand, five hundred sixty-one".