55472783 has 4 divisors (see below), whose sum is σ = 55503168. Its totient is φ = 55442400.

The previous prime is 55472771. The next prime is 55472827. The reversal of 55472783 is 38727455.

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 55472783 - 2¹⁴ = 55456399 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 55472783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55472743) 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, 12266 + ... + 16167.

It is an arithmetic number, because the mean of its divisors is an integer number (13875792).

Almost surely, 2^55472783 is an apocalyptic number.

55472783 is a deficient number, since it is larger than the sum of its proper divisors (30385).

55472783 is a wasteful number, since it uses less digits than its factorization.

55472783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30384.

The product of its digits is 235200, while the sum is 41.

The square root of 55472783 is about 7448.0053034353. The cubic root of 55472783 is about 381.3818181467.

It can be divided in two parts, 554 and 72783, that added together give a palindrome (73337).

The spelling of 55472783 in words is "fifty-five million, four hundred seventy-two thousand, seven hundred eighty-three".