52478247555 has 24 divisors (see below), whose sum is σ = 93420739152. Its totient is φ = 27231954624.

The previous prime is 52478247553. The next prime is 52478247583. The reversal of 52478247555 is 55574287425.

It is a happy number.

52478247555 is a `hidden beast` number, since 5 + 2 + 4 + 7 + 82 + 4 + 7 + 555 = 666.

It is not a de Polignac number, because 52478247555 - 2¹ = 52478247553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52478247553) 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 23 ways as a sum of consecutive naturals, for example, 15757569 + ... + 15760898.

It is an arithmetic number, because the mean of its divisors is an integer number (3892530798).

Almost surely, 2^52478247555 is an apocalyptic number.

52478247555 is a deficient number, since it is larger than the sum of its proper divisors (40942491597).

52478247555 is a wasteful number, since it uses less digits than its factorization.

52478247555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31518515 (or 31518512 counting only the distinct ones).

The product of its digits is 15680000, while the sum is 54.

The spelling of 52478247555 in words is "fifty-two billion, four hundred seventy-eight million, two hundred forty-seven thousand, five hundred fifty-five".