55082880 has 192 divisors, whose sum is σ = 194285520. Its totient is φ = 14376960.

The previous prime is 55082869. The next prime is 55082891. The reversal of 55082880 is 8828055.

55082880 is a `hidden beast` number, since 550 + 8 + 28 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (55082869) and next prime (55082891).

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 420415 + ... + 420545.

Almost surely, 2^55082880 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 55082880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97142760).

55082880 is an abundant number, since it is smaller than the sum of its proper divisors (139202640).

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

55082880 is a wasteful number, since it uses less digits than its factorization.

55082880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 55082880 is about 7421.7841520756. The cubic root of 55082880 is about 380.4861736592.

The spelling of 55082880 in words is "fifty-five million, eighty-two thousand, eight hundred eighty".