42555005425 has 6 divisors (see below), whose sum is σ = 52768206758. Its totient is φ = 34044004320.

The previous prime is 42555005407. The next prime is 42555005429. The reversal of 42555005425 is 52450055524.

It can be written as a sum of positive squares in 3 ways, for example, as 2073163024 + 40481842401 = 45532^2 + 201201^2 .

It is not a de Polignac number, because 42555005425 - 2¹¹ = 42555003377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42555005429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851100084 + ... + 851100133.

Almost surely, 2^42555005425 is an apocalyptic number.

It is an amenable number.

42555005425 is a deficient number, since it is larger than the sum of its proper divisors (10213201333).

42555005425 is a wasteful number, since it uses less digits than its factorization.

42555005425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702200227 (or 1702200222 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 37.

The spelling of 42555005425 in words is "forty-two billion, five hundred fifty-five million, five thousand, four hundred twenty-five".