505456013401 has 4 divisors (see below), whose sum is σ = 513000133072. Its totient is φ = 497911893732.

The previous prime is 505456013399. The next prime is 505456013417. The reversal of 505456013401 is 104310654505.

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 505456013401 - 2¹ = 505456013399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505456013701) 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, 3772059735 + ... + 3772059868.

It is an arithmetic number, because the mean of its divisors is an integer number (128250033268).

Almost surely, 2^505456013401 is an apocalyptic number.

It is an amenable number.

505456013401 is a deficient number, since it is larger than the sum of its proper divisors (7544119671).

505456013401 is an equidigital number, since it uses as much as digits as its factorization.

505456013401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7544119670.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 505456013401 its reverse (104310654505), we get a palindrome (609766667906).

The spelling of 505456013401 in words is "five hundred five billion, four hundred fifty-six million, thirteen thousand, four hundred one".