520894279 has 4 divisors (see below), whose sum is σ = 531977184. Its totient is φ = 509811376.

The previous prime is 520894261. The next prime is 520894301. The reversal of 520894279 is 972498025.

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

It is a cyclic number.

It is not a de Polignac number, because 520894279 - 2¹⁵ = 520861511 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 (520894219) 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, 5541382 + ... + 5541475.

It is an arithmetic number, because the mean of its divisors is an integer number (132994296).

Almost surely, 2^520894279 is an apocalyptic number.

520894279 is a deficient number, since it is larger than the sum of its proper divisors (11082905).

520894279 is a wasteful number, since it uses less digits than its factorization.

520894279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11082904.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 520894279 is about 22823.1084429795. The cubic root of 520894279 is about 804.6058685576.

The spelling of 520894279 in words is "five hundred twenty million, eight hundred ninety-four thousand, two hundred seventy-nine".