520720052 has 12 divisors (see below), whose sum is σ = 912134496. Its totient is φ = 260110200.

The previous prime is 520720033. The next prime is 520720063. The reversal of 520720052 is 250027025.

It is a super-2 number, since 2×520720052² = 542298745109765408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57728 + ... + 66135.

It is an arithmetic number, because the mean of its divisors is an integer number (76011208).

Almost surely, 2^520720052 is an apocalyptic number.

It is an amenable number.

520720052 is a deficient number, since it is larger than the sum of its proper divisors (391414444).

520720052 is a wasteful number, since it uses less digits than its factorization.

520720052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124918 (or 124916 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520720052 is about 22819.2912247510. The cubic root of 520720052 is about 804.5161512486.

Adding to 520720052 its reverse (250027025), we get a palindrome (770747077).

The spelling of 520720052 in words is "five hundred twenty million, seven hundred twenty thousand, fifty-two".