55080256 has 56 divisors (see below), whose sum is σ = 136282176. Its totient is φ = 21457920.

The previous prime is 55080209. The next prime is 55080271. The reversal of 55080256 is 65208055.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 10516.

Almost surely, 2^55080256 is an apocalyptic number.

55080256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55080256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68141088).

55080256 is an abundant number, since it is smaller than the sum of its proper divisors (81201920).

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

55080256 is a wasteful number, since it uses less digits than its factorization.

55080256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11207 (or 11197 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 55080256 is about 7421.6073730695. The cubic root of 55080256 is about 380.4801317846.

The spelling of 55080256 in words is "fifty-five million, eighty thousand, two hundred fifty-six".