575321616 has 100 divisors (see below), whose sum is σ = 1763165052. Its totient is φ = 180486144.

The previous prime is 575321611. The next prime is 575321629. The reversal of 575321616 is 616123575.

575321616 is a `hidden beast` number, since 5 + 7 + 5 + 32 + 1 + 616 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 406425600 + 168896016 = 20160^2 + 12996^2 .

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

It is not an unprimeable number, because it can be changed into a prime (575321611) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 8976 + ... + 35088.

Almost surely, 2^575321616 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 575321616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881582526).

575321616 is an abundant number, since it is smaller than the sum of its proper divisors (1187843436).

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

575321616 is a wasteful number, since it uses less digits than its factorization.

575321616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26150 (or 26135 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 575321616 is about 23985.8628362625. The cubic root of 575321616 is about 831.7067584060.

The spelling of 575321616 in words is "five hundred seventy-five million, three hundred twenty-one thousand, six hundred sixteen".