55043277 has 4 divisors (see below), whose sum is σ = 73391040. Its totient is φ = 36695516.

The previous prime is 55043269. The next prime is 55043281. The reversal of 55043277 is 77234055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55043277 - 2³ = 55043269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55043257) 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, 9173877 + ... + 9173882.

It is an arithmetic number, because the mean of its divisors is an integer number (18347760).

Almost surely, 2^55043277 is an apocalyptic number.

It is an amenable number.

55043277 is a deficient number, since it is larger than the sum of its proper divisors (18347763).

55043277 is a wasteful number, since it uses less digits than its factorization.

55043277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18347762.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 55043277 is about 7419.1156481079. The cubic root of 55043277 is about 380.3949656068.

The spelling of 55043277 in words is "fifty-five million, forty-three thousand, two hundred seventy-seven".