515691452 has 12 divisors (see below), whose sum is σ = 905893296. Its totient is φ = 256864800.

The previous prime is 515691443. The next prime is 515691457. The reversal of 515691452 is 254196515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515691457) 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 3 ways as a sum of consecutive naturals, for example, 244049 + ... + 246152.

It is an arithmetic number, because the mean of its divisors is an integer number (75491108).

Almost surely, 2^515691452 is an apocalyptic number.

It is an amenable number.

515691452 is a deficient number, since it is larger than the sum of its proper divisors (390201844).

515691452 is a wasteful number, since it uses less digits than its factorization.

515691452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490468 (or 490466 counting only the distinct ones).

The product of its digits is 54000, while the sum is 38.

The square root of 515691452 is about 22708.8408334728. The cubic root of 515691452 is about 801.9180290307.

The spelling of 515691452 in words is "five hundred fifteen million, six hundred ninety-one thousand, four hundred fifty-two".