55208544 has 48 divisors (see below), whose sum is σ = 145410048. Its totient is φ = 18340992.

The previous prime is 55208539. The next prime is 55208567. The reversal of 55208544 is 44580255.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34449 + ... + 36015.

It is an arithmetic number, because the mean of its divisors is an integer number (3029376).

Almost surely, 2^55208544 is an apocalyptic number.

It is an amenable number.

55208544 is an abundant number, since it is smaller than the sum of its proper divisors (90201504).

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

55208544 is a wasteful number, since it uses less digits than its factorization.

55208544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 55208544 is about 7430.2452180261. The cubic root of 55208544 is about 380.7752961636.

Adding to 55208544 its reverse (44580255), we get a palindrome (99788799).

The spelling of 55208544 in words is "fifty-five million, two hundred eight thousand, five hundred forty-four".