575551656 has 80 divisors (see below), whose sum is σ = 1632628800. Its totient is φ = 189405216.

The previous prime is 575551649. The next prime is 575551657. The reversal of 575551656 is 656155575.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (575551657) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45571 + ... + 56813.

It is an arithmetic number, because the mean of its divisors is an integer number (20407860).

Almost surely, 2^575551656 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 575551656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816314400).

575551656 is an abundant number, since it is smaller than the sum of its proper divisors (1057077144).

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

575551656 is a wasteful number, since it uses less digits than its factorization.

575551656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11340 (or 11327 counting only the distinct ones).

The product of its digits is 787500, while the sum is 45.

The square root of 575551656 is about 23990.6576816893. The cubic root of 575551656 is about 831.8175951524.

The spelling of 575551656 in words is "five hundred seventy-five million, five hundred fifty-one thousand, six hundred fifty-six".