505405463533 has 32 divisors (see below), whose sum is σ = 553686921216. Its totient is φ = 459456012288.

The previous prime is 505405463503. The next prime is 505405463539. The reversal of 505405463533 is 335364504505.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505405463533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505405463533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505405463539) 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 31 ways as a sum of consecutive naturals, for example, 29049285 + ... + 29066677.

It is an arithmetic number, because the mean of its divisors is an integer number (17302716288).

Almost surely, 2^505405463533 is an apocalyptic number.

It is an amenable number.

505405463533 is a deficient number, since it is larger than the sum of its proper divisors (48281457683).

505405463533 is a wasteful number, since it uses less digits than its factorization.

505405463533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17893.

The product of its (nonzero) digits is 1620000, while the sum is 43.

The spelling of 505405463533 in words is "five hundred five billion, four hundred five million, four hundred sixty-three thousand, five hundred thirty-three".