501695761 has 6 divisors (see below), whose sum is σ = 583605330. Its totient is φ = 430024896.

The previous prime is 501695731. The next prime is 501695767. The reversal of 501695761 is 167596105.

It can be written as a sum of positive squares in only one way, i.e., 414366736 + 87329025 = 20356^2 + 9345^2 .

It is not a de Polignac number, because 501695761 - 2⁵ = 501695729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501695767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5119296 + ... + 5119393.

It is an arithmetic number, because the mean of its divisors is an integer number (97267555).

Almost surely, 2^501695761 is an apocalyptic number.

It is an amenable number.

501695761 is a deficient number, since it is larger than the sum of its proper divisors (81909569).

501695761 is a wasteful number, since it uses less digits than its factorization.

501695761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238703 (or 10238696 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 501695761 is about 22398.5660478523. The cubic root of 501695761 is about 794.5967977697.

The spelling of 501695761 in words is "five hundred one million, six hundred ninety-five thousand, seven hundred sixty-one".