55089468 has 72 divisors (see below), whose sum is σ = 161441280. Its totient is φ = 15513120.

The previous prime is 55089457. The next prime is 55089491. The reversal of 55089468 is 86498055.

55089468 is a `hidden beast` number, since 550 + 8 + 94 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16353 + ... + 19431.

It is an arithmetic number, because the mean of its divisors is an integer number (2242240).

Almost surely, 2^55089468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55089468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80720640).

55089468 is an abundant number, since it is smaller than the sum of its proper divisors (106351812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55089468 is a wasteful number, since it uses less digits than its factorization.

55089468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167 (or 3162 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 55089468 is about 7422.2279673963. The cubic root of 55089468 is about 380.5013419716.

The spelling of 55089468 in words is "fifty-five million, eighty-nine thousand, four hundred sixty-eight".