520230001 has 4 divisors (see below), whose sum is σ = 520613604. Its totient is φ = 519846400.

The previous prime is 520229999. The next prime is 520230023. The reversal of 520230001 is 100032025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 99980001 + 420250000 = 9999^2 + 20500^2 .

It is a cyclic number.

It is not a de Polignac number, because 520230001 - 2¹ = 520229999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520230091) 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, 189760 + ... + 192481.

It is an arithmetic number, because the mean of its divisors is an integer number (130153401).

Almost surely, 2^520230001 is an apocalyptic number.

It is an amenable number.

520230001 is a deficient number, since it is larger than the sum of its proper divisors (383603).

520230001 is a wasteful number, since it uses less digits than its factorization.

520230001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383602.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 520230001 is about 22808.5510499900. The cubic root of 520230001 is about 804.2636946196.

Adding to 520230001 its reverse (100032025), we get a palindrome (620262026).

The spelling of 520230001 in words is "five hundred twenty million, two hundred thirty thousand, one".