515230720 has 88 divisors (see below), whose sum is σ = 1249226784. Its totient is φ = 203882496.

The previous prime is 515230711. The next prime is 515230721. The reversal of 515230720 is 27032515.

It is not an unprimeable number, because it can be changed into a prime (515230721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526872 + ... + 527848.

Almost surely, 2^515230720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515230720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624613392).

515230720 is an abundant number, since it is smaller than the sum of its proper divisors (733996064).

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

515230720 is a wasteful number, since it uses less digits than its factorization.

515230720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 515230720 is about 22698.6942355722. The cubic root of 515230720 is about 801.6791398127.

The spelling of 515230720 in words is "five hundred fifteen million, two hundred thirty thousand, seven hundred twenty".