51482685555 has 48 divisors (see below), whose sum is σ = 102143758080. Its totient is φ = 23498247744.

The previous prime is 51482685533. The next prime is 51482685557. The reversal of 51482685555 is 55558628415.

It is a happy number.

51482685555 is a `hidden beast` number, since 5 + 1 + 4 + 8 + 2 + 6 + 85 + 555 = 666.

It is not a de Polignac number, because 51482685555 - 2⁹ = 51482685043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51482685557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75456 + ... + 329634.

It is an arithmetic number, because the mean of its divisors is an integer number (2127994960).

Almost surely, 2^51482685555 is an apocalyptic number.

51482685555 is a deficient number, since it is larger than the sum of its proper divisors (50661072525).

51482685555 is a wasteful number, since it uses less digits than its factorization.

51482685555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254840 (or 254837 counting only the distinct ones).

The product of its digits is 9600000, while the sum is 54.

The spelling of 51482685555 in words is "fifty-one billion, four hundred eighty-two million, six hundred eighty-five thousand, five hundred fifty-five".