55472863 has 4 divisors (see below), whose sum is σ = 55513008. Its totient is φ = 55432720.

The previous prime is 55472861. The next prime is 55472897. The reversal of 55472863 is 36827455.

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

It is a cyclic number.

It is not a de Polignac number, because 55472863 - 2¹ = 55472861 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 (55472861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17923 + ... + 20788.

It is an arithmetic number, because the mean of its divisors is an integer number (13878252).

Almost surely, 2^55472863 is an apocalyptic number.

55472863 is a deficient number, since it is larger than the sum of its proper divisors (40145).

55472863 is a wasteful number, since it uses less digits than its factorization.

55472863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40144.

The product of its digits is 201600, while the sum is 40.

The square root of 55472863 is about 7448.0106739988. The cubic root of 55472863 is about 381.3820014830.

The spelling of 55472863 in words is "fifty-five million, four hundred seventy-two thousand, eight hundred sixty-three".