55562080 has 144 divisors (see below), whose sum is σ = 161164080. Its totient is φ = 17998848.

The previous prime is 55562047. The next prime is 55562081. The reversal of 55562080 is 8026555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55562081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148774 + ... + 149146.

It is an arithmetic number, because the mean of its divisors is an integer number (1119195).

Almost surely, 2^55562080 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 55562080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80582040).

55562080 is an abundant number, since it is smaller than the sum of its proper divisors (105602000).

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

55562080 is a wasteful number, since it uses less digits than its factorization.

55562080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 406 counting only the distinct ones).

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

The square root of 55562080 is about 7453.9975851888. The cubic root of 55562080 is about 381.5863508487.

The spelling of 55562080 in words is "fifty-five million, five hundred sixty-two thousand, eighty".