506687745 has 16 divisors (see below), whose sum is σ = 819060480. Its totient is φ = 267446784.

The previous prime is 506687719. The next prime is 506687747. The reversal of 506687745 is 547786605.

It is not a de Polignac number, because 506687745 - 2⁷ = 506687617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 506687694 and 506687703.

It is not an unprimeable number, because it can be changed into a prime (506687747) 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 15 ways as a sum of consecutive naturals, for example, 172665 + ... + 175574.

It is an arithmetic number, because the mean of its divisors is an integer number (51191280).

Almost surely, 2^506687745 is an apocalyptic number.

It is an amenable number.

506687745 is a deficient number, since it is larger than the sum of its proper divisors (312372735).

506687745 is a wasteful number, since it uses less digits than its factorization.

506687745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348344.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The square root of 506687745 is about 22509.7255647420. The cubic root of 506687745 is about 797.2235760050.

The spelling of 506687745 in words is "five hundred six million, six hundred eighty-seven thousand, seven hundred forty-five".