5325666444 has 144 divisors (see below), whose sum is σ = 16079551488. Its totient is φ = 1454471424.

The previous prime is 5325666443. The next prime is 5325666473. The reversal of 5325666444 is 4446665235.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5325666444.

It is not an unprimeable number, because it can be changed into a prime (5325666443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504064 + ... + 514520.

It is an arithmetic number, because the mean of its divisors is an integer number (111663552).

Almost surely, 2^5325666444 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 5325666444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8039775744).

5325666444 is an abundant number, since it is smaller than the sum of its proper divisors (10753885044).

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

5325666444 is a wasteful number, since it uses less digits than its factorization.

5325666444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10564 (or 10559 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The square root of 5325666444 is about 72977.1638528108. The cubic root of 5325666444 is about 1746.3233223859.

The spelling of 5325666444 in words is "five billion, three hundred twenty-five million, six hundred sixty-six thousand, four hundred forty-four".