553220985 has 8 divisors (see below), whose sum is σ = 885153600. Its totient is φ = 295051184.

The previous prime is 553220981. The next prime is 553220989. The reversal of 553220985 is 589022355.

It is an interprime number because it is at equal distance from previous prime (553220981) and next prime (553220989).

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 553220985 - 2² = 553220981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (553220981) 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, 18440685 + ... + 18440714.

It is an arithmetic number, because the mean of its divisors is an integer number (110644200).

Almost surely, 2^553220985 is an apocalyptic number.

It is an amenable number.

553220985 is a deficient number, since it is larger than the sum of its proper divisors (331932615).

553220985 is a wasteful number, since it uses less digits than its factorization.

553220985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36881407.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 553220985 is about 23520.6501823398. The cubic root of 553220985 is about 820.9175654811.

The spelling of 553220985 in words is "five hundred fifty-three million, two hundred twenty thousand, nine hundred eighty-five".