505230401 has 12 divisors (see below), whose sum is σ = 558732672. Its totient is φ = 456436656.

The previous prime is 505230371. The next prime is 505230419. The reversal of 505230401 is 104032505.

It is not a de Polignac number, because 505230401 - 2¹⁸ = 504968257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505230461) 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 11 ways as a sum of consecutive naturals, for example, 23861 + ... + 39746.

It is an arithmetic number, because the mean of its divisors is an integer number (46561056).

Almost surely, 2^505230401 is an apocalyptic number.

It is an amenable number.

505230401 is a deficient number, since it is larger than the sum of its proper divisors (53502271).

505230401 is a wasteful number, since it uses less digits than its factorization.

505230401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63680 (or 63667 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 505230401 is about 22477.3308246331. The cubic root of 505230401 is about 796.4585126560.

Adding to 505230401 its reverse (104032505), we get a palindrome (609262906).

It can be divided in two parts, 5052 and 30401, that added together give a palindrome (35453).

The spelling of 505230401 in words is "five hundred five million, two hundred thirty thousand, four hundred one".