501597 has 6 divisors (see below), whose sum is σ = 724542. Its totient is φ = 334392.

The previous prime is 501593. The next prime is 501601. The reversal of 501597 is 795105.

It is an interprime number because it is at equal distance from previous prime (501593) and next prime (501601).

It can be written as a sum of positive squares in only one way, i.e., 488601 + 12996 = 699^2 + 114^2 .

It is not a de Polignac number, because 501597 - 2² = 501593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501593) 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 5 ways as a sum of consecutive naturals, for example, 27858 + ... + 27875.

It is an arithmetic number, because the mean of its divisors is an integer number (120757).

2⁵⁰¹⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

501597 is a deficient number, since it is larger than the sum of its proper divisors (222945).

501597 is a wasteful number, since it uses less digits than its factorization.

501597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55739 (or 55736 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The square root of 501597 is about 708.2351304475. The cubic root of 501597 is about 79.4544654399.

The spelling of 501597 in words is "five hundred one thousand, five hundred ninety-seven".