55138594 has 8 divisors (see below), whose sum is σ = 94523328. Its totient is φ = 23630820.

The previous prime is 55138591. The next prime is 55138597. The reversal of 55138594 is 49583155.

It is an interprime number because it is at equal distance from previous prime (55138591) and next prime (55138597).

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

It is not an unprimeable number, because it can be changed into a prime (55138591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969222 + ... + 1969249.

It is an arithmetic number, because the mean of its divisors is an integer number (11815416).

Almost surely, 2^55138594 is an apocalyptic number.

55138594 is a deficient number, since it is larger than the sum of its proper divisors (39384734).

55138594 is a wasteful number, since it uses less digits than its factorization.

55138594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938480.

The product of its digits is 108000, while the sum is 40.

The square root of 55138594 is about 7425.5366136058. The cubic root of 55138594 is about 380.6144123158.

The spelling of 55138594 in words is "fifty-five million, one hundred thirty-eight thousand, five hundred ninety-four".