505497963 has 4 divisors (see below), whose sum is σ = 673997288. Its totient is φ = 336998640.

The previous prime is 505497931. The next prime is 505497977. The reversal of 505497963 is 369794505.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 505497963 - 2⁵ = 505497931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505497163) 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, 84249658 + ... + 84249663.

It is an arithmetic number, because the mean of its divisors is an integer number (168499322).

Almost surely, 2^505497963 is an apocalyptic number.

505497963 is a deficient number, since it is larger than the sum of its proper divisors (168499325).

505497963 is a wasteful number, since it uses less digits than its factorization.

505497963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168499324.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The square root of 505497963 is about 22483.2818556366. The cubic root of 505497963 is about 796.5990851055.

The spelling of 505497963 in words is "five hundred five million, four hundred ninety-seven thousand, nine hundred sixty-three".