505230523 has 12 divisors (see below), whose sum is σ = 603603552. Its totient is φ = 421349040.

The previous prime is 505230499. The next prime is 505230623. The reversal of 505230523 is 325032505.

It is not a de Polignac number, because 505230523 - 2²⁵ = 471676091 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505230023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137523 + ... + 141148.

It is an arithmetic number, because the mean of its divisors is an integer number (50300296).

Almost surely, 2^505230523 is an apocalyptic number.

505230523 is a deficient number, since it is larger than the sum of its proper divisors (98373029).

505230523 is a wasteful number, since it uses less digits than its factorization.

505230523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278722 (or 278715 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 505230523 is about 22477.3335384783. Note that the first 3 decimals coincide. The cubic root of 505230523 is about 796.4585767640.

The spelling of 505230523 in words is "five hundred five million, two hundred thirty thousand, five hundred twenty-three".