520274293 has 16 divisors (see below), whose sum is σ = 652800384. Its totient is φ = 402816960.

The previous prime is 520274269. The next prime is 520274299. The reversal of 520274293 is 392472025.

It is a happy number.

It is not a de Polignac number, because 520274293 - 2¹³ = 520266101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520274299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9430 + ... + 33607.

It is an arithmetic number, because the mean of its divisors is an integer number (40800024).

Almost surely, 2^520274293 is an apocalyptic number.

It is an amenable number.

520274293 is a deficient number, since it is larger than the sum of its proper divisors (132526091).

520274293 is a wasteful number, since it uses less digits than its factorization.

520274293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43212.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 520274293 is about 22809.5219809622. The cubic root of 520274293 is about 804.2865187785.

The spelling of 520274293 in words is "five hundred twenty million, two hundred seventy-four thousand, two hundred ninety-three".