55089911 has 8 divisors (see below), whose sum is σ = 61400880. Its totient is φ = 49120128.

The previous prime is 55089901. The next prime is 55089917. The reversal of 55089911 is 11998055.

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 55089911 - 2⁶ = 55089847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55089917) 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, 84956 + ... + 85601.

It is an arithmetic number, because the mean of its divisors is an integer number (7675110).

Almost surely, 2^55089911 is an apocalyptic number.

55089911 is a deficient number, since it is larger than the sum of its proper divisors (6310969).

55089911 is a wasteful number, since it uses less digits than its factorization.

55089911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170593.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 55089911 is about 7422.2578101276. The cubic root of 55089911 is about 380.5023618982.

The spelling of 55089911 in words is "fifty-five million, eighty-nine thousand, nine hundred eleven".