42555644655524 has 96 divisors (see below), whose sum is σ = 99996149600256. Its totient is φ = 15303921598080.

The previous prime is 42555644655499. The next prime is 42555644655529.

42555644655524 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (42555644655529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78556817 + ... + 79096679.

It is an arithmetic number, because the mean of its divisors is an integer number (1041626558336).

Almost surely, 2^{42555644655524} is an apocalyptic number.

42555644655524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42555644655524 is an abundant number, since it is smaller than the sum of its proper divisors (57440504944732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42555644655524 is a wasteful number, since it uses less digits than its factorization.

42555644655524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559585 (or 559583 counting only the distinct ones).

The product of its digits is 576000000, while the sum is 62.

The spelling of 42555644655524 in words is "forty-two trillion, five hundred fifty-five billion, six hundred forty-four million, six hundred fifty-five thousand, five hundred twenty-four".