55880055 has 48 divisors (see below), whose sum is σ = 120766464. Its totient is φ = 23221440.

The previous prime is 55880047. The next prime is 55880107. The reversal of 55880055 is 55008855.

It is not a de Polignac number, because 55880055 - 2³ = 55880047 is a prime.

It is a super-3 number, since 3×55880055³ (a number of 24 digits) contains 333 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4599 + ... + 11528.

It is an arithmetic number, because the mean of its divisors is an integer number (2515968).

Almost surely, 2^55880055 is an apocalyptic number.

55880055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55880055 is an abundant number, since it is smaller than the sum of its proper divisors (64886409).

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

55880055 is a wasteful number, since it uses less digits than its factorization.

55880055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16156 (or 16153 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The square root of 55880055 is about 7475.2963151971. The cubic root of 55880055 is about 382.3128906721.

It can be divided in two parts, 558800 and 55, that added together give a palindrome (558855).

The spelling of 55880055 in words is "fifty-five million, eight hundred eighty thousand, fifty-five".