515487464 has 16 divisors (see below), whose sum is σ = 1023394500. Its totient is φ = 242582272.

The previous prime is 515487463. The next prime is 515487503. The reversal of 515487464 is 464784515.

It can be written as a sum of positive squares in 2 ways, for example, as 513384964 + 2102500 = 22658^2 + 1450^2 .

It is not an unprimeable number, because it can be changed into a prime (515487463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895039 + ... + 1895310.

Almost surely, 2^515487464 is an apocalyptic number.

It is an amenable number.

515487464 is a deficient number, since it is larger than the sum of its proper divisors (507907036).

515487464 is a wasteful number, since it uses less digits than its factorization.

515487464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790372 (or 3790368 counting only the distinct ones).

The product of its digits is 537600, while the sum is 44.

The square root of 515487464 is about 22704.3490107072. The cubic root of 515487464 is about 801.8122789561.

The spelling of 515487464 in words is "five hundred fifteen million, four hundred eighty-seven thousand, four hundred sixty-four".