523542 has 8 divisors (see below), whose sum is σ = 1047096. Its totient is φ = 174512.

The previous prime is 523541. The next prime is 523543. The reversal of 523542 is 245325.

It is an interprime number because it is at equal distance from previous prime (523541) and next prime (523543).

It is a sphenic number, since it is the product of 3 distinct primes.

523542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 43623 + ... + 43634.

It is an arithmetic number, because the mean of its divisors is an integer number (130887).

2⁵²³⁵⁴² is an apocalyptic number.

523542 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.

523542 is a wasteful number, since it uses less digits than its factorization.

523542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87262.

The product of its digits is 1200, while the sum is 21.

The square root of 523542 is about 723.5620222206. The cubic root of 523542 is about 80.5966843659.

Adding to 523542 its reverse (245325), we get a palindrome (768867).

The spelling of 523542 in words is "five hundred twenty-three thousand, five hundred forty-two".