506245761 has 16 divisors (see below), whose sum is σ = 857136000. Its totient is φ = 289283184.

The previous prime is 506245757. The next prime is 506245793. The reversal of 506245761 is 167542605.

It is a happy number.

It is not a de Polignac number, because 506245761 - 2² = 506245757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506245711) 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, 1339086 + ... + 1339463.

It is an arithmetic number, because the mean of its divisors is an integer number (53571000).

Almost surely, 2^506245761 is an apocalyptic number.

It is an amenable number.

506245761 is a deficient number, since it is larger than the sum of its proper divisors (350890239).

506245761 is a wasteful number, since it uses less digits than its factorization.

506245761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678565 (or 2678559 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 506245761 is about 22499.9057998028. The cubic root of 506245761 is about 796.9917023821.

The spelling of 506245761 in words is "five hundred six million, two hundred forty-five thousand, seven hundred sixty-one".