55644463 has 8 divisors (see below), whose sum is σ = 63822240. Its totient is φ = 47523840.

The previous prime is 55644461. The next prime is 55644467. The reversal of 55644463 is 36444655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55644463 - 2¹ = 55644461 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 (55644461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12178 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (7977780).

Almost surely, 2^55644463 is an apocalyptic number.

55644463 is a deficient number, since it is larger than the sum of its proper divisors (8177777).

55644463 is a wasteful number, since it uses less digits than its factorization.

55644463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28577.

The product of its digits is 172800, while the sum is 37.

The square root of 55644463 is about 7459.5216334561. The cubic root of 55644463 is about 381.7748529355.

The spelling of 55644463 in words is "fifty-five million, six hundred forty-four thousand, four hundred sixty-three".