55017489 has 8 divisors (see below), whose sum is σ = 73608192. Its totient is φ = 36552560.

The previous prime is 55017481. The next prime is 55017493. The reversal of 55017489 is 98471055.

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

It is a cyclic number.

It is not a de Polignac number, because 55017489 - 2³ = 55017481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55017481) 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, 30417 + ... + 32174.

It is an arithmetic number, because the mean of its divisors is an integer number (9201024).

Almost surely, 2^55017489 is an apocalyptic number.

It is an amenable number.

55017489 is a deficient number, since it is larger than the sum of its proper divisors (18590703).

55017489 is a wasteful number, since it uses less digits than its factorization.

55017489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62887.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 55017489 is about 7417.3775015163. The cubic root of 55017489 is about 380.3355507956.

The spelling of 55017489 in words is "fifty-five million, seventeen thousand, four hundred eighty-nine".