520662041 has 4 divisors (see below), whose sum is σ = 522325812. Its totient is φ = 518998272.

The previous prime is 520662031. The next prime is 520662047. The reversal of 520662041 is 140266025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 263380441 + 257281600 = 16229^2 + 16040^2 .

It is a cyclic number.

It is not a de Polignac number, because 520662041 - 2¹⁸ = 520399897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520662041.

It is not an unprimeable number, because it can be changed into a prime (520662047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831416 + ... + 832041.

It is an arithmetic number, because the mean of its divisors is an integer number (130581453).

Almost surely, 2^520662041 is an apocalyptic number.

It is an amenable number.

520662041 is a deficient number, since it is larger than the sum of its proper divisors (1663771).

520662041 is a wasteful number, since it uses less digits than its factorization.

520662041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663770.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 520662041 is about 22818.0200937768. The cubic root of 520662041 is about 804.4862743377.

The spelling of 520662041 in words is "five hundred twenty million, six hundred sixty-two thousand, forty-one".