55139014 has 24 divisors (see below), whose sum is σ = 98565768. Its totient is φ = 23052960.

The previous prime is 55139011. The next prime is 55139023. The reversal of 55139014 is 41093155.

55139014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55139011) 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 11 ways as a sum of consecutive naturals, for example, 2844 + ... + 10879.

It is an arithmetic number, because the mean of its divisors is an integer number (4106907).

Almost surely, 2^55139014 is an apocalyptic number.

55139014 is a deficient number, since it is larger than the sum of its proper divisors (43426754).

55139014 is a wasteful number, since it uses less digits than its factorization.

55139014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13780 (or 13773 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 55139014 is about 7425.5648943363. The cubic root of 55139014 is about 380.6153787148.

The spelling of 55139014 in words is "fifty-five million, one hundred thirty-nine thousand, fourteen".