524253220 has 12 divisors (see below), whose sum is σ = 1100931804. Its totient is φ = 209701280.

The previous prime is 524253209. The next prime is 524253221. The reversal of 524253220 is 22352425.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59074596 + 465178624 = 7686^2 + 21568^2 .

It is not an unprimeable number, because it can be changed into a prime (524253221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13106311 + ... + 13106350.

It is an arithmetic number, because the mean of its divisors is an integer number (91744317).

Almost surely, 2^524253220 is an apocalyptic number.

It is an amenable number.

524253220 is an abundant number, since it is smaller than the sum of its proper divisors (576678584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

524253220 is a wasteful number, since it uses less digits than its factorization.

524253220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26212670 (or 26212668 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 524253220 is about 22896.5766000073. The cubic root of 524253220 is about 806.3316411128.

The spelling of 524253220 in words is "five hundred twenty-four million, two hundred fifty-three thousand, two hundred twenty".