55201080 has 256 divisors, whose sum is σ = 199065600. Its totient is φ = 12096000.

The previous prime is 55201063. The next prime is 55201087. The reversal of 55201080 is 8010255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55201087) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 777445 + ... + 777515.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^55201080 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 55201080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99532800).

55201080 is an abundant number, since it is smaller than the sum of its proper divisors (143864520).

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

55201080 is a wasteful number, since it uses less digits than its factorization.

55201080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 55201080 is about 7429.7429296040. The cubic root of 55201080 is about 380.7581355655.

The spelling of 55201080 in words is "fifty-five million, two hundred one thousand, eighty".