505497 has 4 divisors (see below), whose sum is σ = 674000. Its totient is φ = 336996.

The previous prime is 505493. The next prime is 505501. The reversal of 505497 is 794505.

505497 = 159² + 160² + ... + 176².

505497 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (505493) and next prime (505501).

It is not a de Polignac number, because 505497 - 2² = 505493 is a prime.

It is a D-number.

It is a Duffinian number.

505497 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505497.

It is not an unprimeable number, because it can be changed into a prime (505493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84247 + ... + 84252.

It is an arithmetic number, because the mean of its divisors is an integer number (168500).

2⁵⁰⁵⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

505497 is a deficient number, since it is larger than the sum of its proper divisors (168503).

505497 is a wasteful number, since it uses less digits than its factorization.

505497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168502.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 505497 is about 710.9831221625. The cubic root of 505497 is about 79.6598579251.

It can be divided in two parts, 5054 and 97, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 505497 in words is "five hundred five thousand, four hundred ninety-seven".