55381110 has 16 divisors (see below), whose sum is σ = 132914736. Its totient is φ = 14768288.

The previous prime is 55381099. The next prime is 55381127. The reversal of 55381110 is 1118355.

55381110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922989 + ... + 923048.

It is an arithmetic number, because the mean of its divisors is an integer number (8307171).

Almost surely, 2^55381110 is an apocalyptic number.

55381110 is an abundant number, since it is smaller than the sum of its proper divisors (77533626).

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

55381110 is a wasteful number, since it uses less digits than its factorization.

55381110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846047.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 55381110 is about 7441.8485606736. The cubic root of 55381110 is about 381.1716148087.

Adding to 55381110 its reverse (1118355), we get a palindrome (56499465).

The spelling of 55381110 in words is "fifty-five million, three hundred eighty-one thousand, one hundred ten".