520042570 has 32 divisors (see below), whose sum is σ = 945215568. Its totient is φ = 205997568.

The previous prime is 520042541. The next prime is 520042591. The reversal of 520042570 is 75240025.

It can be written as a sum of positive squares in 8 ways, for example, as 275526801 + 244515769 = 16599^2 + 15637^2 .

It is a super-3 number, since 3×520042570³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545214 + ... + 546166.

Almost surely, 2^520042570 is an apocalyptic number.

520042570 is a deficient number, since it is larger than the sum of its proper divisors (425172998).

520042570 is a wasteful number, since it uses less digits than its factorization.

520042570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 520042570 is about 22804.4418918771. The cubic root of 520042570 is about 804.1670950031.

Adding to 520042570 its reverse (75240025), we get a palindrome (595282595).

The spelling of 520042570 in words is "five hundred twenty million, forty-two thousand, five hundred seventy".