55065489 has 8 divisors (see below), whose sum is σ = 73790400. Its totient is φ = 36525456.

The previous prime is 55065487. The next prime is 55065497. The reversal of 55065489 is 98456055.

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

It is not a de Polignac number, because 55065489 - 2¹ = 55065487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55065489.

It is not an unprimeable number, because it can be changed into a prime (55065481) 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, 45522 + ... + 46715.

It is an arithmetic number, because the mean of its divisors is an integer number (9223800).

Almost surely, 2^55065489 is an apocalyptic number.

It is an amenable number.

55065489 is a deficient number, since it is larger than the sum of its proper divisors (18724911).

55065489 is a wasteful number, since it uses less digits than its factorization.

55065489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92439.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 55065489 is about 7420.6124410321. The cubic root of 55065489 is about 380.4461265426.

The spelling of 55065489 in words is "fifty-five million, sixty-five thousand, four hundred eighty-nine".