7543564 has 12 divisors (see below), whose sum is σ = 15087184. Its totient is φ = 3232944.

The previous prime is 7543561. The next prime is 7543577. The reversal of 7543564 is 4653457.

It is a happy number.

7543564 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7543561) 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 3 ways as a sum of consecutive naturals, for example, 134679 + ... + 134734.

Almost surely, 2^7543564 is an apocalyptic number.

It is an amenable number.

7543564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7543564 is a wasteful number, since it uses less digits than its factorization.

7543564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269424 (or 269422 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 7543564 is about 2746.5549330024. The cubic root of 7543564 is about 196.1216446040.

The spelling of 7543564 in words is "seven million, five hundred forty-three thousand, five hundred sixty-four".