520121055652 has 24 divisors (see below), whose sum is σ = 994932493632. Its totient is φ = 235948634400.

The previous prime is 520121055647. The next prime is 520121055653. The reversal of 520121055652 is 256550121025.

It is a super-2 number, since 2×520121055652² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520121055653) 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 7 ways as a sum of consecutive naturals, for example, 11728299 + ... + 11772562.

It is an arithmetic number, because the mean of its divisors is an integer number (41455520568).

Almost surely, 2^520121055652 is an apocalyptic number.

It is an amenable number.

520121055652 is a deficient number, since it is larger than the sum of its proper divisors (474811437980).

520121055652 is a wasteful number, since it uses less digits than its factorization.

520121055652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23501379 (or 23501377 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 520121055652 its reverse (256550121025), we get a palindrome (776671176677).

The spelling of 520121055652 in words is "five hundred twenty billion, one hundred twenty-one million, fifty-five thousand, six hundred fifty-two".