55541380 has 96 divisors (see below), whose sum is σ = 131725440. Its totient is φ = 19568640.

The previous prime is 55541333. The next prime is 55541401. The reversal of 55541380 is 8314555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423915 + ... + 424045.

It is an arithmetic number, because the mean of its divisors is an integer number (1372140).

Almost surely, 2^55541380 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 55541380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65862720).

55541380 is an abundant number, since it is smaller than the sum of its proper divisors (76184060).

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

55541380 is a wasteful number, since it uses less digits than its factorization.

55541380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 227 counting only the distinct ones).

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

The square root of 55541380 is about 7452.6089391568. The cubic root of 55541380 is about 381.5389575031.

The spelling of 55541380 in words is "fifty-five million, five hundred forty-one thousand, three hundred eighty".