520862445 has 12 divisors (see below), whose sum is σ = 902828316. Its totient is φ = 277793280.

The previous prime is 520862423. The next prime is 520862449. The reversal of 520862445 is 544268025.

It is a happy number.

520862445 is a `hidden beast` number, since 5 + 20 + 8 + 624 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56115081 + 464747364 = 7491^2 + 21558^2 .

It is not a de Polignac number, because 520862445 - 2⁸ = 520862189 is a prime.

It is a super-2 number, since 2×520862445² = 542595373222756050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520862449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5787316 + ... + 5787405.

It is an arithmetic number, because the mean of its divisors is an integer number (75235693).

Almost surely, 2^520862445 is an apocalyptic number.

It is an amenable number.

520862445 is a deficient number, since it is larger than the sum of its proper divisors (381965871).

520862445 is a wasteful number, since it uses less digits than its factorization.

520862445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11574732 (or 11574729 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 520862445 is about 22822.4110251305. The cubic root of 520862445 is about 804.5894772948.

The spelling of 520862445 in words is "five hundred twenty million, eight hundred sixty-two thousand, four hundred forty-five".