515616468 has 24 divisors (see below), whose sum is σ = 1204529760. Its totient is φ = 171668640.

The previous prime is 515616467. The next prime is 515616473. The reversal of 515616468 is 864616515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515616467) 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, 14703 + ... + 35318.

It is an arithmetic number, because the mean of its divisors is an integer number (50188740).

Almost surely, 2^515616468 is an apocalyptic number.

It is an amenable number.

515616468 is an abundant number, since it is smaller than the sum of its proper divisors (688913292).

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

515616468 is a wasteful number, since it uses less digits than its factorization.

515616468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50887 (or 50885 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 515616468 is about 22707.1897864971. The cubic root of 515616468 is about 801.8791595763.

The spelling of 515616468 in words is "five hundred fifteen million, six hundred sixteen thousand, four hundred sixty-eight".