510520023 has 32 divisors (see below), whose sum is σ = 816300800. Its totient is φ = 313473888.

The previous prime is 510520001. The next prime is 510520079. The reversal of 510520023 is 320025015.

It is a happy number.

It is not a de Polignac number, because 510520023 - 2⁶ = 510519959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 510519978 and 510520005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510530023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190668 + ... + 193326.

It is an arithmetic number, because the mean of its divisors is an integer number (25509400).

Almost surely, 2^510520023 is an apocalyptic number.

510520023 is a deficient number, since it is larger than the sum of its proper divisors (305780777).

510520023 is a wasteful number, since it uses less digits than its factorization.

510520023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228 (or 3222 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 510520023 is about 22594.6901505641. The cubic root of 510520023 is about 799.2284347439.

Adding to 510520023 its reverse (320025015), we get a palindrome (830545038).

The spelling of 510520023 in words is "five hundred ten million, five hundred twenty thousand, twenty-three".