55445893 has 8 divisors (see below), whose sum is σ = 57931200. Its totient is φ = 52966848.

The previous prime is 55445867. The next prime is 55445953. The reversal of 55445893 is 39854455.

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 55445893 - 2⁵ = 55445861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55445833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33438 + ... + 35056.

It is an arithmetic number, because the mean of its divisors is an integer number (7241400).

Almost surely, 2^55445893 is an apocalyptic number.

It is an amenable number.

55445893 is a deficient number, since it is larger than the sum of its proper divisors (2485307).

55445893 is a wasteful number, since it uses less digits than its factorization.

55445893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131.

The product of its digits is 432000, while the sum is 43.

The square root of 55445893 is about 7446.1999033064. The cubic root of 55445893 is about 381.3201842303.

The spelling of 55445893 in words is "fifty-five million, four hundred forty-five thousand, eight hundred ninety-three".