515155232 has 12 divisors (see below), whose sum is σ = 1014211926. Its totient is φ = 257577600.

The previous prime is 515155231. The next prime is 515155243. The reversal of 515155232 is 232551515.

It can be written as a sum of positive squares in only one way, i.e., 477160336 + 37994896 = 21844^2 + 6164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 515155195 and 515155204.

It is not an unprimeable number, because it can be changed into a prime (515155231) 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 as a sum of consecutive naturals, namely, 8049269 + ... + 8049332.

Almost surely, 2^515155232 is an apocalyptic number.

It is an amenable number.

515155232 is a deficient number, since it is larger than the sum of its proper divisors (499056694).

515155232 is a wasteful number, since it uses less digits than its factorization.

515155232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16098611 (or 16098603 counting only the distinct ones).

The product of its digits is 7500, while the sum is 29.

The square root of 515155232 is about 22697.0313477336. The cubic root of 515155232 is about 801.6399857611.

The spelling of 515155232 in words is "five hundred fifteen million, one hundred fifty-five thousand, two hundred thirty-two".