553063644 has 36 divisors (see below), whose sum is σ = 1597740144. Its totient is φ = 158018112.

The previous prime is 553063631. The next prime is 553063649. The reversal of 553063644 is 446360355.

553063644 is a `hidden beast` number, since 5 + 5 + 3 + 0 + 6 + 3 + 644 = 666.

553063644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 553063599 and 553063608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553063649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1097097 + ... + 1097600.

Almost surely, 2^553063644 is an apocalyptic number.

It is an amenable number.

553063644 is an abundant number, since it is smaller than the sum of its proper divisors (1044676500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553063644 is a wasteful number, since it uses less digits than its factorization.

553063644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194714 (or 2194709 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 553063644 is about 23517.3052027650. The cubic root of 553063644 is about 820.8397326673.

The spelling of 553063644 in words is "five hundred fifty-three million, sixty-three thousand, six hundred forty-four".