520230719 has 4 divisors (see below), whose sum is σ = 550832544. Its totient is φ = 489628896.

The previous prime is 520230611. The next prime is 520230757. The reversal of 520230719 is 917032025.

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

It is a cyclic number.

It is not a de Polignac number, because 520230719 - 2²⁸ = 251795263 is a prime.

It is a super-2 number, since 2×520230719² = 541280001982513922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520230691 and 520230700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520230769) 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, 15300887 + ... + 15300920.

It is an arithmetic number, because the mean of its divisors is an integer number (137708136).

Almost surely, 2^520230719 is an apocalyptic number.

520230719 is a deficient number, since it is larger than the sum of its proper divisors (30601825).

520230719 is a wasteful number, since it uses less digits than its factorization.

520230719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30601824.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 520230719 is about 22808.5667896955. The cubic root of 520230719 is about 804.2640646233.

The spelling of 520230719 in words is "five hundred twenty million, two hundred thirty thousand, seven hundred nineteen".