55109956 has 24 divisors (see below), whose sum is σ = 110748960. Its totient is φ = 23731200.

The previous prime is 55109927. The next prime is 55109959. The reversal of 55109956 is 65990155.

It is not an unprimeable number, because it can be changed into a prime (55109959) by changing a digit.

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, 32125 + ... + 33796.

It is an arithmetic number, because the mean of its divisors is an integer number (4614540).

Almost surely, 2^55109956 is an apocalyptic number.

It is an amenable number.

55109956 is an abundant number, since it is smaller than the sum of its proper divisors (55639004).

55109956 is a wasteful number, since it uses less digits than its factorization.

55109956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65955 (or 65953 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 40.

The square root of 55109956 is about 7423.6080176690. The cubic root of 55109956 is about 380.5485061305.

It can be divided in two parts, 551099 and 56, that added together give a palindrome (551155).

The spelling of 55109956 in words is "fifty-five million, one hundred nine thousand, nine hundred fifty-six".