55013645 has 16 divisors (see below), whose sum is σ = 70338240. Its totient is φ = 41186304.

The previous prime is 55013617. The next prime is 55013653. The reversal of 55013645 is 54631055.

55013645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55013645 - 2¹⁰ = 55012621 is a prime.

It is a super-3 number, since 3×55013645³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 15 ways as a sum of consecutive naturals, for example, 4397 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (4396140).

Almost surely, 2^55013645 is an apocalyptic number.

It is an amenable number.

55013645 is a deficient number, since it is larger than the sum of its proper divisors (15324595).

55013645 is a wasteful number, since it uses less digits than its factorization.

55013645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55013645 is about 7417.1183757575. The cubic root of 55013645 is about 380.3266927402.

The spelling of 55013645 in words is "fifty-five million, thirteen thousand, six hundred forty-five".