521030201 has 8 divisors (see below), whose sum is σ = 550567680. Its totient is φ = 492066432.

The previous prime is 521030197. The next prime is 521030207. The reversal of 521030201 is 102030125.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 521030201 - 2² = 521030197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521030207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141560 + ... + 145193.

It is an arithmetic number, because the mean of its divisors is an integer number (68820960).

Almost surely, 2^521030201 is an apocalyptic number.

It is an amenable number.

521030201 is a deficient number, since it is larger than the sum of its proper divisors (29537479).

521030201 is a wasteful number, since it uses less digits than its factorization.

521030201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286855.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 521030201 is about 22826.0859763561. The cubic root of 521030201 is about 804.6758470108.

Adding to 521030201 its reverse (102030125), we get a palindrome (623060326).

The spelling of 521030201 in words is "five hundred twenty-one million, thirty thousand, two hundred one".