5605980 has 48 divisors (see below), whose sum is σ = 15803424. Its totient is φ = 1484800.

The previous prime is 5605949. The next prime is 5605991. The reversal of 5605980 is 895065.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13780 + ... + 14180.

It is an arithmetic number, because the mean of its divisors is an integer number (329238).

Almost surely, 2^5605980 is an apocalyptic number.

It is an amenable number.

5605980 is an abundant number, since it is smaller than the sum of its proper divisors (10197444).

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

5605980 is a wasteful number, since it uses less digits than its factorization.

5605980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 5605980 is about 2367.6950817198. The cubic root of 5605980 is about 177.6439881707.

Subtracting from 5605980 its reverse (895065), we obtain a triangular number (4710915 = T₃₀₆₉).

The spelling of 5605980 in words is "five million, six hundred five thousand, nine hundred eighty".