524021213 has 12 divisors (see below), whose sum is σ = 566331168. Its totient is φ = 483935760.

The previous prime is 524021207. The next prime is 524021227. The reversal of 524021213 is 312120425.

It is not a de Polignac number, because 524021213 - 2⁶ = 524021149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524021203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5798 + ... + 32888.

It is an arithmetic number, because the mean of its divisors is an integer number (47194264).

Almost surely, 2^524021213 is an apocalyptic number.

It is an amenable number.

524021213 is a deficient number, since it is larger than the sum of its proper divisors (42309955).

524021213 is a wasteful number, since it uses less digits than its factorization.

524021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27172 (or 27143 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 524021213 is about 22891.5096269337. The cubic root of 524021213 is about 806.2126768533.

Adding to 524021213 its reverse (312120425), we get a palindrome (836141638).

The spelling of 524021213 in words is "five hundred twenty-four million, twenty-one thousand, two hundred thirteen".