523546 has 4 divisors (see below), whose sum is σ = 785322. Its totient is φ = 261772.

The previous prime is 523543. The next prime is 523553. The reversal of 523546 is 645325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 12321 = 715^2 + 111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 523546.

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 as a sum of consecutive naturals, namely, 130885 + ... + 130888.

2⁵²³⁵⁴⁶ is an apocalyptic number.

523546 is a deficient number, since it is larger than the sum of its proper divisors (261776).

523546 is a wasteful number, since it uses less digits than its factorization.

523546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261775.

The product of its digits is 3600, while the sum is 25.

The square root of 523546 is about 723.5647863184. The cubic root of 523546 is about 80.5968896254.

The spelling of 523546 in words is "five hundred twenty-three thousand, five hundred forty-six".