55075820571 has 6 divisors (see below), whose sum is σ = 79553963060. Its totient is φ = 36717213708.

The previous prime is 55075820561. The next prime is 55075820609. The reversal of 55075820571 is 17502857055.

55075820571 is a `hidden beast` number, since 5 + 5 + 0 + 7 + 58 + 20 + 571 = 666.

It is not a de Polignac number, because 55075820571 - 2⁶ = 55075820507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55075820531) 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 5 ways as a sum of consecutive naturals, for example, 3059767801 + ... + 3059767818.

Almost surely, 2^55075820571 is an apocalyptic number.

55075820571 is a deficient number, since it is larger than the sum of its proper divisors (24478142489).

55075820571 is a wasteful number, since it uses less digits than its factorization.

55075820571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119535625 (or 6119535622 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 45.

The spelling of 55075820571 in words is "fifty-five billion, seventy-five million, eight hundred twenty thousand, five hundred seventy-one".