545980 has 12 divisors (see below), whose sum is σ = 1146600. Its totient is φ = 218384.

The previous prime is 545959. The next prime is 546001. The reversal of 545980 is 89545.

It is an interprime number because it is at equal distance from previous prime (545959) and next prime (546001).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13630 + ... + 13669.

It is an arithmetic number, because the mean of its divisors is an integer number (95550).

2⁵⁴⁵⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

545980 is an abundant number, since it is smaller than the sum of its proper divisors (600620).

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

545980 is a wasteful number, since it uses less digits than its factorization.

545980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27308 (or 27306 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 545980 is about 738.9045946535. The cubic root of 545980 is about 81.7320222823.

The spelling of 545980 in words is "five hundred forty-five thousand, nine hundred eighty".