42000055505505 has 64 divisors (see below), whose sum is σ = 75104699731200. Its totient is φ = 22268718650880.

The previous prime is 42000055505501. The next prime is 42000055505531. The reversal of 42000055505505 is 50550555000024.

42000055505505 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 0 + 0 + 55 + 50 + 550 + 5 = 666.

It is not a de Polignac number, because 42000055505505 - 2² = 42000055505501 is a prime.

It is a super-2 number, since 2×42000055505505² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42000055505505.

It is not an unprimeable number, because it can be changed into a prime (42000055505501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87649165 + ... + 88127045.

It is an arithmetic number, because the mean of its divisors is an integer number (1173510933300).

Almost surely, 2^{42000055505505} is an apocalyptic number.

42000055505505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42000055505505 is a deficient number, since it is larger than the sum of its proper divisors (33104644225695).

42000055505505 is a wasteful number, since it uses less digits than its factorization.

42000055505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481711 (or 481705 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The spelling of 42000055505505 in words is "forty-two trillion, fifty-five million, five hundred five thousand, five hundred five".