55447474455 has 32 divisors (see below), whose sum is σ = 98603697600. Its totient is φ = 29562863616.

The previous prime is 55447474441. The next prime is 55447474469.

55447474455 is a `hidden beast` number, since 5 + 54 + 4 + 74 + 74 + 455 = 666.

55447474455 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (55447474441) and next prime (55447474469).

It is not a de Polignac number, because 55447474455 - 2⁹ = 55447473943 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387727 + ... + 511103.

It is an arithmetic number, because the mean of its divisors is an integer number (3081365550).

Almost surely, 2^55447474455 is an apocalyptic number.

55447474455 is a deficient number, since it is larger than the sum of its proper divisors (43156223145).

55447474455 is a wasteful number, since it uses less digits than its factorization.

55447474455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126720 (or 126714 counting only the distinct ones).

The product of its digits is 31360000, while the sum is 54.

The spelling of 55447474455 in words is "fifty-five billion, four hundred forty-seven million, four hundred seventy-four thousand, four hundred fifty-five".