7523542 has 12 divisors (see below), whose sum is σ = 12220740. Its totient is φ = 3472248.

The previous prime is 7523539. The next prime is 7523561. The reversal of 7523542 is 2453257.

It is a self number, because there is not a number n which added to its sum of digits gives 7523542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10792 + ... + 11467.

It is an arithmetic number, because the mean of its divisors is an integer number (1018395).

Almost surely, 2^7523542 is an apocalyptic number.

7523542 is a deficient number, since it is larger than the sum of its proper divisors (4697198).

7523542 is a wasteful number, since it uses less digits than its factorization.

7523542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22287 (or 22274 counting only the distinct ones).

The product of its digits is 8400, while the sum is 28.

The square root of 7523542 is about 2742.9075813815. The cubic root of 7523542 is about 195.9479766135.

Adding to 7523542 its reverse (2453257), we get a palindrome (9976799).

The spelling of 7523542 in words is "seven million, five hundred twenty-three thousand, five hundred forty-two".