520562263 has 4 divisors (see below), whose sum is σ = 560605528. Its totient is φ = 480519000.

The previous prime is 520562233. The next prime is 520562279. The reversal of 520562263 is 362265025.

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

It is a de Polignac number, because none of the positive numbers 2^k-520562263 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 (520562233) 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, 20021613 + ... + 20021638.

It is an arithmetic number, because the mean of its divisors is an integer number (140151382).

Almost surely, 2^520562263 is an apocalyptic number.

520562263 is a deficient number, since it is larger than the sum of its proper divisors (40043265).

520562263 is a wasteful number, since it uses less digits than its factorization.

520562263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40043264.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 520562263 is about 22815.8336030047. The cubic root of 520562263 is about 804.4348813334.

The spelling of 520562263 in words is "five hundred twenty million, five hundred sixty-two thousand, two hundred sixty-three".