55927380447 has 28 divisors (see below), whose sum is σ = 83872491720. Its totient is φ = 37276126128.

The previous prime is 55927380433. The next prime is 55927380449. The reversal of 55927380447 is 74408372955.

It is a happy number.

55927380447 is a `hidden beast` number, since 5 + 59 + 2 + 73 + 80 + 447 = 666.

It is not a de Polignac number, because 55927380447 - 2³¹ = 53779896799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55927380393 and 55927380402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55927380449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4936233 + ... + 4947549.

Almost surely, 2^55927380447 is an apocalyptic number.

55927380447 is a deficient number, since it is larger than the sum of its proper divisors (27945111273).

55927380447 is an equidigital number, since it uses as much as digits as its factorization.

55927380447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18114 (or 18099 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 55927380447 in words is "fifty-five billion, nine hundred twenty-seven million, three hundred eighty thousand, four hundred forty-seven".