553221243556 has 12 divisors (see below), whose sum is σ = 968485822668. Its totient is φ = 276511008512.

The previous prime is 553221243461. The next prime is 553221243587. The reversal of 553221243556 is 655342122355.

It can be written as a sum of positive squares in 2 ways, for example, as 84634446400 + 468586797156 = 290920^2 + 684534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24890821 + ... + 24913036.

It is an arithmetic number, because the mean of its divisors is an integer number (80707151889).

Almost surely, 2^553221243556 is an apocalyptic number.

It is an amenable number.

553221243556 is a deficient number, since it is larger than the sum of its proper divisors (415264579112).

553221243556 is a wasteful number, since it uses less digits than its factorization.

553221243556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49806638 (or 49806636 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 43.

The spelling of 553221243556 in words is "five hundred fifty-three billion, two hundred twenty-one million, two hundred forty-three thousand, five hundred fifty-six".