520277379 has 8 divisors (see below), whose sum is σ = 694336512. Its totient is φ = 346534920.

The previous prime is 520277353. The next prime is 520277389. The reversal of 520277379 is 973772025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520277379 - 2¹⁵ = 520244611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520277379.

It is not an unprimeable number, because it can be changed into a prime (520277389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75307 + ... + 81924.

It is an arithmetic number, because the mean of its divisors is an integer number (86792064).

Almost surely, 2^520277379 is an apocalyptic number.

520277379 is a deficient number, since it is larger than the sum of its proper divisors (174059133).

520277379 is a wasteful number, since it uses less digits than its factorization.

520277379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158337.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 520277379 is about 22809.5896280490. The cubic root of 520277379 is about 804.2881089802.

The spelling of 520277379 in words is "five hundred twenty million, two hundred seventy-seven thousand, three hundred seventy-nine".