515625242 has 8 divisors (see below), whose sum is σ = 843750432. Its totient is φ = 234375100.

The previous prime is 515625221. The next prime is 515625269. The reversal of 515625242 is 242526515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 515625199 and 515625208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11718734 + ... + 11718777.

It is an arithmetic number, because the mean of its divisors is an integer number (105468804).

Almost surely, 2^515625242 is an apocalyptic number.

515625242 is a deficient number, since it is larger than the sum of its proper divisors (328125190).

515625242 is a wasteful number, since it uses less digits than its factorization.

515625242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23437524.

The product of its digits is 24000, while the sum is 32.

The square root of 515625242 is about 22707.3829843952. The cubic root of 515625242 is about 801.8837079492.

The spelling of 515625242 in words is "five hundred fifteen million, six hundred twenty-five thousand, two hundred forty-two".