55601289 has 16 divisors (see below), whose sum is σ = 84383040. Its totient is φ = 36162720.

The previous prime is 55601267. The next prime is 55601291. The reversal of 55601289 is 98210655.

It is a happy number.

55601289 is a `hidden beast` number, since 5 + 560 + 12 + 89 = 666.

It is not a de Polignac number, because 55601289 - 2⁵ = 55601257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55602289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24007 + ... + 26220.

It is an arithmetic number, because the mean of its divisors is an integer number (5273940).

Almost surely, 2^55601289 is an apocalyptic number.

It is an amenable number.

55601289 is a deficient number, since it is larger than the sum of its proper divisors (28781751).

55601289 is a wasteful number, since it uses less digits than its factorization.

55601289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50277 (or 50271 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 55601289 is about 7456.6271866039. The cubic root of 55601289 is about 381.6760889173.

The spelling of 55601289 in words is "fifty-five million, six hundred one thousand, two hundred eighty-nine".