553855861 has 8 divisors (see below), whose sum is σ = 602036064. Its totient is φ = 506472240.

The previous prime is 553855859. The next prime is 553855873. The reversal of 553855861 is 168558355.

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 553855861 - 2¹ = 553855859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553855831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197695 + ... + 200476.

It is an arithmetic number, because the mean of its divisors is an integer number (75254508).

Almost surely, 2^553855861 is an apocalyptic number.

It is an amenable number.

553855861 is a deficient number, since it is larger than the sum of its proper divisors (48180203).

553855861 is a wasteful number, since it uses less digits than its factorization.

553855861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398291.

The product of its digits is 720000, while the sum is 46.

The square root of 553855861 is about 23534.1424530404. The cubic root of 553855861 is about 821.2314735652.

The spelling of 553855861 in words is "five hundred fifty-three million, eight hundred fifty-five thousand, eight hundred sixty-one".