55673919 has 32 divisors (see below), whose sum is σ = 95178240. Its totient is φ = 31504896.

The previous prime is 55673909. The next prime is 55673921. The reversal of 55673919 is 91937655.

55673919 is a `hidden beast` number, since 556 + 7 + 3 + 91 + 9 = 666.

55673919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55673919 - 2⁹ = 55673407 is a prime.

It is a super-2 number, since 2×55673919² = 6199170513637122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55673909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18847 + ... + 21599.

It is an arithmetic number, because the mean of its divisors is an integer number (2974320).

Almost surely, 2^55673919 is an apocalyptic number.

55673919 is a deficient number, since it is larger than the sum of its proper divisors (39504321).

55673919 is a wasteful number, since it uses less digits than its factorization.

55673919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2870 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 55673919 is about 7461.4957615749. The cubic root of 55673919 is about 381.8422066052.

It can be divided in two parts, 5 and 5673919, that added together give a square (5673924 = 2382²).

The spelling of 55673919 in words is "fifty-five million, six hundred seventy-three thousand, nine hundred nineteen".