524491 has 4 divisors (see below), whose sum is σ = 572184. Its totient is φ = 476800.

The previous prime is 524453. The next prime is 524497. The reversal of 524491 is 194425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-524491 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5³ + 2¹⁹ + 4 + 4³ + 9 + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (524497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23830 + ... + 23851.

It is an arithmetic number, because the mean of its divisors is an integer number (143046).

2⁵²⁴⁴⁹¹ is an apocalyptic number.

524491 is a deficient number, since it is larger than the sum of its proper divisors (47693).

524491 is a wasteful number, since it uses less digits than its factorization.

524491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47692.

The product of its digits is 1440, while the sum is 25.

The square root of 524491 is about 724.2175087638. The cubic root of 524491 is about 80.6453529131.

It can be divided in two parts, 5244 and 91, that added together give a palindrome (5335).

The spelling of 524491 in words is "five hundred twenty-four thousand, four hundred ninety-one".