55505474 has 4 divisors (see below), whose sum is σ = 83258214. Its totient is φ = 27752736.

The previous prime is 55505419. The next prime is 55505491. The reversal of 55505474 is 47450555.

55505474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 34281025 + 21224449 = 5855^2 + 4607^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13876367 + ... + 13876370.

Almost surely, 2^55505474 is an apocalyptic number.

55505474 is a deficient number, since it is larger than the sum of its proper divisors (27752740).

55505474 is a wasteful number, since it uses less digits than its factorization.

55505474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27752739.

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 55505474 is about 7450.1995946417. The cubic root of 55505474 is about 381.4567215738.

The spelling of 55505474 in words is "fifty-five million, five hundred five thousand, four hundred seventy-four".