524704221 has 24 divisors (see below), whose sum is σ = 818138880. Its totient is φ = 323052576.

The previous prime is 524704097. The next prime is 524704231. The reversal of 524704221 is 122407425.

It is not a de Polignac number, because 524704221 - 2¹⁷ = 524573149 is a prime.

It is a super-3 number, since 3×524704221³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524704231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37701 + ... + 49706.

It is an arithmetic number, because the mean of its divisors is an integer number (34089120).

Almost surely, 2^524704221 is an apocalyptic number.

It is an amenable number.

524704221 is a deficient number, since it is larger than the sum of its proper divisors (293434659).

524704221 is a wasteful number, since it uses less digits than its factorization.

524704221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87465 (or 87462 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 524704221 is about 22906.4231384998. The cubic root of 524704221 is about 806.5627966760.

The spelling of 524704221 in words is "five hundred twenty-four million, seven hundred four thousand, two hundred twenty-one".