55443601 has 4 divisors (see below), whose sum is σ = 55598400. Its totient is φ = 55288804.

The previous prime is 55443599. The next prime is 55443607. The reversal of 55443601 is 10634455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55443601 - 2¹ = 55443599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55443601.

It is not an unprimeable number, because it can be changed into a prime (55443607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76861 + ... + 77578.

It is an arithmetic number, because the mean of its divisors is an integer number (13899600).

Almost surely, 2^55443601 is an apocalyptic number.

It is an amenable number.

55443601 is a deficient number, since it is larger than the sum of its proper divisors (154799).

55443601 is a wasteful number, since it uses less digits than its factorization.

55443601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154798.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 55443601 is about 7446.0459977091. The cubic root of 55443601 is about 381.3149298712.

The spelling of 55443601 in words is "fifty-five million, four hundred forty-three thousand, six hundred one".