55422727 has 4 divisors (see below), whose sum is σ = 55775896. Its totient is φ = 55069560.

The previous prime is 55422713. The next prime is 55422733. The reversal of 55422727 is 72722455.

It is a happy number.

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 55422727 - 2¹⁹ = 54898439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55422692 and 55422701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422767) 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, 176349 + ... + 176662.

It is an arithmetic number, because the mean of its divisors is an integer number (13943974).

Almost surely, 2^55422727 is an apocalyptic number.

55422727 is a deficient number, since it is larger than the sum of its proper divisors (353169).

55422727 is a wasteful number, since it uses less digits than its factorization.

55422727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353168.

The product of its digits is 39200, while the sum is 34.

The square root of 55422727 is about 7444.6441822293. The cubic root of 55422727 is about 381.2670700231.

The spelling of 55422727 in words is "fifty-five million, four hundred twenty-two thousand, seven hundred twenty-seven".