5561620000 has 240 divisors, whose sum is σ = 14548343040. Its totient is φ = 2088576000.

The previous prime is 5561619997. The next prime is 5561620013. The reversal of 5561620000 is 261655.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24939889 + ... + 24940111.

It is an arithmetic number, because the mean of its divisors is an integer number (60618096).

Almost surely, 2^5561620000 is an apocalyptic number.

5561620000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7274171520).

5561620000 is an abundant number, since it is smaller than the sum of its proper divisors (8986723040).

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

5561620000 is a wasteful number, since it uses less digits than its factorization.

5561620000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 5561620000 is about 74576.2696841294. The cubic root of 5561620000 is about 1771.7418243406.

Adding to 5561620000 its reverse (261655), we get a palindrome (5561881655).

The spelling of 5561620000 in words is "five billion, five hundred sixty-one million, six hundred twenty thousand".