505031413 has 4 divisors (see below), whose sum is σ = 506044000. Its totient is φ = 504018828.

The previous prime is 505031357. The next prime is 505031441. The reversal of 505031413 is 314130505.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 505031413 - 2⁹ = 505030901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505031453) 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, 505545 + ... + 506542.

It is an arithmetic number, because the mean of its divisors is an integer number (126511000).

Almost surely, 2^505031413 is an apocalyptic number.

It is an amenable number.

505031413 is a deficient number, since it is larger than the sum of its proper divisors (1012587).

505031413 is a wasteful number, since it uses less digits than its factorization.

505031413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012586.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 505031413 is about 22472.9039734521. The cubic root of 505031413 is about 796.3539356171.

Adding to 505031413 its reverse (314130505), we get a palindrome (819161918).

It can be divided in two parts, 5050 and 31413, that added together give a palindrome (36463).

The spelling of 505031413 in words is "five hundred five million, thirty-one thousand, four hundred thirteen".