553561385 has 8 divisors (see below), whose sum is σ = 715371720. Its totient is φ = 408783744.

The previous prime is 553561363. The next prime is 553561387. The reversal of 553561385 is 583165355.

It is a happy number.

553561385 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36772096 + 516789289 = 6064^2 + 22733^2 .

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 553561385 - 2⁶ = 553561321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (553561387) 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, 4258100 + ... + 4258229.

It is an arithmetic number, because the mean of its divisors is an integer number (89421465).

Almost surely, 2^553561385 is an apocalyptic number.

It is an amenable number.

553561385 is a deficient number, since it is larger than the sum of its proper divisors (161810335).

553561385 is a wasteful number, since it uses less digits than its factorization.

553561385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516347.

The product of its digits is 270000, while the sum is 41.

The square root of 553561385 is about 23527.8852640861. The cubic root of 553561385 is about 821.0859026994.

The spelling of 553561385 in words is "five hundred fifty-three million, five hundred sixty-one thousand, three hundred eighty-five".