520412755 has 16 divisors (see below), whose sum is σ = 696034080. Its totient is φ = 371215872.

The previous prime is 520412707. The next prime is 520412759. The reversal of 520412755 is 557214025.

It is a cyclic number.

It is not a de Polignac number, because 520412755 - 2²³ = 512024147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520412759) 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, 159504 + ... + 162733.

It is an arithmetic number, because the mean of its divisors is an integer number (43502130).

Almost surely, 2^520412755 is an apocalyptic number.

520412755 is a deficient number, since it is larger than the sum of its proper divisors (175621325).

520412755 is a wasteful number, since it uses less digits than its factorization.

520412755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322278.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 520412755 is about 22812.5569588330. The cubic root of 520412755 is about 804.3578614297.

The spelling of 520412755 in words is "five hundred twenty million, four hundred twelve thousand, seven hundred fifty-five".