520253379 has 12 divisors (see below), whose sum is σ = 760532136. Its totient is φ = 342656352.

The previous prime is 520253339. The next prime is 520253381. The reversal of 520253379 is 973352025.

520253379 is a `hidden beast` number, since 52 + 0 + 2 + 533 + 79 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-520253379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520253339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347482 + ... + 348975.

It is an arithmetic number, because the mean of its divisors is an integer number (63377678).

Almost surely, 2^520253379 is an apocalyptic number.

520253379 is a deficient number, since it is larger than the sum of its proper divisors (240278757).

520253379 is a wasteful number, since it uses less digits than its factorization.

520253379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696546 (or 696543 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 520253379 is about 22809.0635274664. The cubic root of 520253379 is about 804.2757417237.

The spelling of 520253379 in words is "five hundred twenty million, two hundred fifty-three thousand, three hundred seventy-nine".