505533422553 has 8 divisors (see below), whose sum is σ = 674048014848. Its totient is φ = 337020555984.

The previous prime is 505533422551. The next prime is 505533422587. The reversal of 505533422553 is 355224335505.

It is a happy number.

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

It is not a de Polignac number, because 505533422553 - 2¹ = 505533422551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505533422551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613975 + ... + 1178147.

It is an arithmetic number, because the mean of its divisors is an integer number (84256001856).

Almost surely, 2^505533422553 is an apocalyptic number.

It is an amenable number.

505533422553 is a deficient number, since it is larger than the sum of its proper divisors (168514592295).

505533422553 is a wasteful number, since it uses less digits than its factorization.

505533422553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862863.

The product of its (nonzero) digits is 1350000, while the sum is 42.

The spelling of 505533422553 in words is "five hundred five billion, five hundred thirty-three million, four hundred twenty-two thousand, five hundred fifty-three".