55510555 has 8 divisors (see below), whose sum is σ = 66652992. Its totient is φ = 44381568.

The previous prime is 55510541. The next prime is 55510561. The reversal of 55510555 is 55501555.

55510555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55510555 - 2⁹ = 55510043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12739 + ... + 16531.

It is an arithmetic number, because the mean of its divisors is an integer number (8331624).

Almost surely, 2^55510555 is an apocalyptic number.

55510555 is a deficient number, since it is larger than the sum of its proper divisors (11142437).

55510555 is a wasteful number, since it uses less digits than its factorization.

55510555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725.

The product of its (nonzero) digits is 15625, while the sum is 31.

The square root of 55510555 is about 7450.5405844140. The cubic root of 55510555 is about 381.4683608009.

It can be divided in two parts, 55510 and 555, that added together give a palindrome (56065).

The spelling of 55510555 in words is "fifty-five million, five hundred ten thousand, five hundred fifty-five".