520303025 has 18 divisors (see below), whose sum is σ = 709164246. Its totient is φ = 378400000.

The previous prime is 520302947. The next prime is 520303031.

520303025 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 22165264 + 498137761 = 4708^2 + 22319^2 .

It is not a de Polignac number, because 520303025 - 2¹⁸ = 520040881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520302988 and 520303006.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 82976 + ... + 89025.

Almost surely, 2^520303025 is an apocalyptic number.

520303025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520303025 is a deficient number, since it is larger than the sum of its proper divisors (188861221).

520303025 is a wasteful number, since it uses less digits than its factorization.

520303025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172033 (or 172017 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 520303025 is about 22810.1517969522. The cubic root of 520303025 is about 804.3013240041.

It can be divided in two parts, 52030 and 3025, that added together give a palindrome (55055).

The spelling of 520303025 in words is "five hundred twenty million, three hundred three thousand, twenty-five".