5645562880 has 88 divisors (see below), whose sum is σ = 13858222752. Its totient is φ = 2205622272.

The previous prime is 5645562833. The next prime is 5645562889. The reversal of 5645562880 is 882655465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645562889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207339 + ... + 232981.

It is an arithmetic number, because the mean of its divisors is an integer number (157479804).

Almost surely, 2^5645562880 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 5645562880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6929111376).

5645562880 is an abundant number, since it is smaller than the sum of its proper divisors (8212659872).

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

5645562880 is a wasteful number, since it uses less digits than its factorization.

5645562880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25711 (or 25693 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

The square root of 5645562880 is about 75136.9608115740. The cubic root of 5645562880 is about 1780.6111271102.

The spelling of 5645562880 in words is "five billion, six hundred forty-five million, five hundred sixty-two thousand, eight hundred eighty".