513531552 has 24 divisors (see below), whose sum is σ = 1348020576. Its totient is φ = 171177152.

The previous prime is 513531539. The next prime is 513531553. The reversal of 513531552 is 255135315.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (513531553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674548 + ... + 2674739.

It is an arithmetic number, because the mean of its divisors is an integer number (56167524).

Almost surely, 2^513531552 is an apocalyptic number.

It is an amenable number.

513531552 is an abundant number, since it is smaller than the sum of its proper divisors (834489024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513531552 is a wasteful number, since it uses less digits than its factorization.

513531552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349300 (or 5349292 counting only the distinct ones).

The product of its digits is 11250, while the sum is 30.

The square root of 513531552 is about 22661.2345647804. The cubic root of 513531552 is about 800.7968892791.

Adding to 513531552 its reverse (255135315), we get a palindrome (768666867).

The spelling of 513531552 in words is "five hundred thirteen million, five hundred thirty-one thousand, five hundred fifty-two".