55542080 has 112 divisors (see below), whose sum is σ = 149230080. Its totient is φ = 19507200.

The previous prime is 55542061. The next prime is 55542083. The reversal of 55542080 is 8024555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55542083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108866 + ... + 109374.

Almost surely, 2^55542080 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 55542080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74615040).

55542080 is an abundant number, since it is smaller than the sum of its proper divisors (93688000).

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

55542080 is a wasteful number, since it uses less digits than its factorization.

55542080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 55542080 is about 7452.6559024283. The cubic root of 55542080 is about 381.5405603689.

The spelling of 55542080 in words is "fifty-five million, five hundred forty-two thousand, eighty".