553864656 has 80 divisors (see below), whose sum is σ = 1498189824. Its totient is φ = 175984512.

The previous prime is 553864627. The next prime is 553864669. The reversal of 553864656 is 656468355.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404485 + ... + 405851.

Almost surely, 2^553864656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553864656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749094912).

553864656 is an abundant number, since it is smaller than the sum of its proper divisors (944325168).

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

553864656 is a wasteful number, since it uses less digits than its factorization.

553864656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1762 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 48.

The square root of 553864656 is about 23534.3293084804. The cubic root of 553864656 is about 821.2358204799.

The spelling of 553864656 in words is "five hundred fifty-three million, eight hundred sixty-four thousand, six hundred fifty-six".