42545105455 has 16 divisors (see below), whose sum is σ = 52816728960. Its totient is φ = 32874446592.

The previous prime is 42545105453. The next prime is 42545105479. The reversal of 42545105455 is 55450154524.

It is a cyclic number.

It is not a de Polignac number, because 42545105455 - 2¹ = 42545105453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42545105453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813975 + ... + 864664.

It is an arithmetic number, because the mean of its divisors is an integer number (3301045560).

Almost surely, 2^42545105455 is an apocalyptic number.

42545105455 is a deficient number, since it is larger than the sum of its proper divisors (10271623505).

42545105455 is a wasteful number, since it uses less digits than its factorization.

42545105455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678818.

The product of its (nonzero) digits is 400000, while the sum is 40.

Adding to 42545105455 its reverse (55450154524), we get a palindrome (97995259979).

The spelling of 42545105455 in words is "forty-two billion, five hundred forty-five million, one hundred five thousand, four hundred fifty-five".