55308055 has 32 divisors (see below), whose sum is σ = 77371200. Its totient is φ = 37509120.

The previous prime is 55308037. The next prime is 55308059. The reversal of 55308055 is 55080355.

It is not a de Polignac number, because 55308055 - 2⁵ = 55308023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55308059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139117 + ... + 139513.

It is an arithmetic number, because the mean of its divisors is an integer number (2417850).

Almost surely, 2^55308055 is an apocalyptic number.

55308055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55308055 is a deficient number, since it is larger than the sum of its proper divisors (22063145).

55308055 is a wasteful number, since it uses less digits than its factorization.

55308055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 55308055 is about 7436.9385502369. The cubic root of 55308055 is about 381.0039358191.

The spelling of 55308055 in words is "fifty-five million, three hundred eight thousand, fifty-five".