520274273 has 6 divisors (see below), whose sum is σ = 552679206. Its totient is φ = 489669632.

The previous prime is 520274269. The next prime is 520274299. The reversal of 520274273 is 372472025.

It can be written as a sum of positive squares in 3 ways, for example, as 143448529 + 376825744 = 11977^2 + 19412^2 .

It is not a de Polignac number, because 520274273 - 2² = 520274269 is a prime.

It is a super-3 number, since 3×520274273³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520274173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 899840 + ... + 900417.

It is an arithmetic number, because the mean of its divisors is an integer number (92113201).

Almost surely, 2^520274273 is an apocalyptic number.

It is an amenable number.

520274273 is a deficient number, since it is larger than the sum of its proper divisors (32404933).

520274273 is a wasteful number, since it uses less digits than its factorization.

520274273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800291 (or 1800274 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 520274273 is about 22809.5215425488. The cubic root of 520274273 is about 804.2865084726.

The spelling of 520274273 in words is "five hundred twenty million, two hundred seventy-four thousand, two hundred seventy-three".