520265361 has 16 divisors (see below), whose sum is σ = 864857088. Its totient is φ = 270267600.

The previous prime is 520265357. The next prime is 520265381. The reversal of 520265361 is 163562025.

It is not a de Polignac number, because 520265361 - 2² = 520265357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520265311) 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, 1125885 + ... + 1126346.

It is an arithmetic number, because the mean of its divisors is an integer number (54053568).

Almost surely, 2^520265361 is an apocalyptic number.

It is an amenable number.

520265361 is a deficient number, since it is larger than the sum of its proper divisors (344591727).

520265361 is a wasteful number, since it uses less digits than its factorization.

520265361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252252.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 520265361 is about 22809.3261846991. The cubic root of 520265361 is about 804.2819161241.

The spelling of 520265361 in words is "five hundred twenty million, two hundred sixty-five thousand, three hundred sixty-one".