55478134 has 4 divisors (see below), whose sum is σ = 83217204. Its totient is φ = 27739066.

The previous prime is 55478099. The next prime is 55478147. The reversal of 55478134 is 43187455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43187455 = 5 ⋅8637491.

It is a junction number, because it is equal to n+sod(n) for n = 55478093 and 55478102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13869532 + ... + 13869535.

It is an arithmetic number, because the mean of its divisors is an integer number (20804301).

Almost surely, 2^55478134 is an apocalyptic number.

55478134 is a deficient number, since it is larger than the sum of its proper divisors (27739070).

55478134 is a wasteful number, since it uses less digits than its factorization.

55478134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27739069.

The product of its digits is 67200, while the sum is 37.

The square root of 55478134 is about 7448.3645184698. The cubic root of 55478134 is about 381.3940806676.

The spelling of 55478134 in words is "fifty-five million, four hundred seventy-eight thousand, one hundred thirty-four".