5561620002 has 64 divisors (see below), whose sum is σ = 12453390720. Its totient is φ = 1839801600.

The previous prime is 5561619997. The next prime is 5561620013. The reversal of 5561620002 is 2000261655.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4748877 + ... + 4750047.

It is an arithmetic number, because the mean of its divisors is an integer number (194584230).

Almost surely, 2^5561620002 is an apocalyptic number.

5561620002 is an abundant number, since it is smaller than the sum of its proper divisors (6891770718).

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

5561620002 is a wasteful number, since it uses less digits than its factorization.

5561620002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5561620002 is about 74576.2696975385. The cubic root of 5561620002 is about 1771.7418245530.

Adding to 5561620002 its reverse (2000261655), we get a palindrome (7561881657).

The spelling of 5561620002 in words is "five billion, five hundred sixty-one million, six hundred twenty thousand, two".