505550280553 has 8 divisors (see below), whose sum is σ = 513839071616. Its totient is φ = 497326500000.

The previous prime is 505550280541. The next prime is 505550280601. The reversal of 505550280553 is 355082055505.

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

It is a cyclic number.

It is not a de Polignac number, because 505550280553 - 2¹³ = 505550272361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505550280503) 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, 16236948 + ... + 16268053.

It is an arithmetic number, because the mean of its divisors is an integer number (64229883952).

Almost surely, 2^505550280553 is an apocalyptic number.

It is an amenable number.

505550280553 is a deficient number, since it is larger than the sum of its proper divisors (8288791063).

505550280553 is a wasteful number, since it uses less digits than its factorization.

505550280553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32505255.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 505550280553 in words is "five hundred five billion, five hundred fifty million, two hundred eighty thousand, five hundred fifty-three".