55651445 has 4 divisors (see below), whose sum is σ = 66781740. Its totient is φ = 44521152.

The previous prime is 55651439. The next prime is 55651451. The reversal of 55651445 is 54415655.

55651445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55651439) and next prime (55651451).

It can be written as a sum of positive squares in 2 ways, for example, as 24671089 + 30980356 = 4967^2 + 5566^2 .

It is a cyclic number.

It is not a de Polignac number, because 55651445 - 2⁴ = 55651429 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 5565140 + ... + 5565149.

It is an arithmetic number, because the mean of its divisors is an integer number (16695435).

Almost surely, 2^55651445 is an apocalyptic number.

It is an amenable number.

55651445 is a deficient number, since it is larger than the sum of its proper divisors (11130295).

55651445 is a wasteful number, since it uses less digits than its factorization.

55651445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130294.

The product of its digits is 60000, while the sum is 35.

The square root of 55651445 is about 7459.9896112528. The cubic root of 55651445 is about 381.7908200261.

The spelling of 55651445 in words is "fifty-five million, six hundred fifty-one thousand, four hundred forty-five".