55427338 has 4 divisors (see below), whose sum is σ = 83141010. Its totient is φ = 27713668.

The previous prime is 55427311. The next prime is 55427341. The reversal of 55427338 is 83372455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42732369 + 12694969 = 6537^2 + 3563^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55427297 and 55427306.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13856833 + ... + 13856836.

Almost surely, 2^55427338 is an apocalyptic number.

55427338 is a deficient number, since it is larger than the sum of its proper divisors (27713672).

55427338 is a wasteful number, since it uses less digits than its factorization.

55427338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27713671.

The product of its digits is 100800, while the sum is 37.

The square root of 55427338 is about 7444.9538615091. The cubic root of 55427338 is about 381.2776431448.

It can be divided in two parts, 5542 and 7338, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 55427338 in words is "fifty-five million, four hundred twenty-seven thousand, three hundred thirty-eight".