55619927 has 8 divisors (see below), whose sum is σ = 61359120. Its totient is φ = 49994560.

The previous prime is 55619923. The next prime is 55619933. The reversal of 55619927 is 72991655.

It is a happy number.

55619927 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55619927 - 2² = 55619923 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 (55619923) 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 7 ways as a sum of consecutive naturals, for example, 27428 + ... + 29385.

It is an arithmetic number, because the mean of its divisors is an integer number (7669890).

Almost surely, 2^55619927 is an apocalyptic number.

55619927 is a deficient number, since it is larger than the sum of its proper divisors (5739193).

55619927 is a wasteful number, since it uses less digits than its factorization.

55619927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56913.

The product of its digits is 170100, while the sum is 44.

The square root of 55619927 is about 7457.8768426409. The cubic root of 55619927 is about 381.7187311196.

The spelling of 55619927 in words is "fifty-five million, six hundred nineteen thousand, nine hundred twenty-seven".