505405255355223 has 8 divisors (see below), whose sum is σ = 673915599689328. Its totient is φ = 336915873962304.

The previous prime is 505405255355149. The next prime is 505405255355279. The reversal of 505405255355223 is 322553552504505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505405255355223 - 2⁹ = 505405255354711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505405255355123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5240679040 + ... + 5240775477.

It is an arithmetic number, because the mean of its divisors is an integer number (84239449961166).

Almost surely, 2^{505405255355223} is an apocalyptic number.

505405255355223 is a deficient number, since it is larger than the sum of its proper divisors (168510344334105).

505405255355223 is a wasteful number, since it uses less digits than its factorization.

505405255355223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10481470593.

The product of its (nonzero) digits is 22500000, while the sum is 51.

The spelling of 505405255355223 in words is "five hundred five trillion, four hundred five billion, two hundred fifty-five million, three hundred fifty-five thousand, two hundred twenty-three".