55665510 has 16 divisors (see below), whose sum is σ = 133597296. Its totient is φ = 14844128.

The previous prime is 55665509. The next prime is 55665523. The reversal of 55665510 is 1556655.

55665510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 927729 + ... + 927788.

It is an arithmetic number, because the mean of its divisors is an integer number (8349831).

Almost surely, 2^55665510 is an apocalyptic number.

55665510 is an abundant number, since it is smaller than the sum of its proper divisors (77931786).

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

55665510 is a wasteful number, since it uses less digits than its factorization.

55665510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855527.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 55665510 is about 7460.9322473803. The cubic root of 55665510 is about 381.8229811291.

It can be divided in two parts, 556 and 65510, that added together give a palindrome (66066).

The spelling of 55665510 in words is "fifty-five million, six hundred sixty-five thousand, five hundred ten".