55109344 has 24 divisors (see below), whose sum is σ = 109809000. Its totient is φ = 27221376.

The previous prime is 55109339. The next prime is 55109377. The reversal of 55109344 is 44390155.

It is a super-2 number, since 2×55109344² = 6074079592220672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7719 + ... + 13030.

It is an arithmetic number, because the mean of its divisors is an integer number (4575375).

Almost surely, 2^55109344 is an apocalyptic number.

It is an amenable number.

55109344 is a deficient number, since it is larger than the sum of its proper divisors (54699656).

55109344 is a wasteful number, since it uses less digits than its factorization.

55109344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20842 (or 20834 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55109344 is about 7423.5667977058. The cubic root of 55109344 is about 380.5470974525.

Adding to 55109344 its reverse (44390155), we get a palindrome (99499499).

The spelling of 55109344 in words is "fifty-five million, one hundred nine thousand, three hundred forty-four".