55980089 has 8 divisors (see below), whose sum is σ = 61128768. Its totient is φ = 50841360.

The previous prime is 55980083. The next prime is 55980101. The reversal of 55980089 is 98008955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55980089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55980083) 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, 14159 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (7641096).

Almost surely, 2^55980089 is an apocalyptic number.

It is an amenable number.

55980089 is a deficient number, since it is larger than the sum of its proper divisors (5148679).

55980089 is a wasteful number, since it uses less digits than its factorization.

55980089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 55980089 is about 7481.9842956264. The cubic root of 55980089 is about 382.5408878785.

The spelling of 55980089 in words is "fifty-five million, nine hundred eighty thousand, eighty-nine".