520001155552 has 24 divisors (see below), whose sum is σ = 1023840594000. Its totient is φ = 259978147584.

The previous prime is 520001155543. The next prime is 520001155571. The reversal of 520001155552 is 255551100025.

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, 321052 + ... + 1069147.

It is an arithmetic number, because the mean of its divisors is an integer number (42660024750).

Almost surely, 2^520001155552 is an apocalyptic number.

It is an amenable number.

520001155552 is a deficient number, since it is larger than the sum of its proper divisors (503839438448).

520001155552 is a wasteful number, since it uses less digits than its factorization.

520001155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401898 (or 1401890 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

Adding to 520001155552 its reverse (255551100025), we get a palindrome (775552255577).

The spelling of 520001155552 in words is "five hundred twenty billion, one million, one hundred fifty-five thousand, five hundred fifty-two".