42555124520000 has 70 divisors (see below), whose sum is σ = 105522878493318. Its totient is φ = 17022049792000.

The previous prime is 42555124519997. The next prime is 42555124520047. The reversal of 42555124520000 is 2542155524.

It can be written as a sum of positive squares in 5 ways, for example, as 22930153639936 + 19624970880064 = 4788544^2 + 4430008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 531899057 + ... + 531979056.

Almost surely, 2^{42555124520000} is an apocalyptic number.

42555124520000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42555124520000 is an abundant number, since it is smaller than the sum of its proper divisors (62967753973318).

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

42555124520000 is an equidigital number, since it uses as much as digits as its factorization.

42555124520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063878145 (or 1063878120 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 42555124520000 its reverse (2542155524), we get a palindrome (42557666675524).

The spelling of 42555124520000 in words is "forty-two trillion, five hundred fifty-five billion, one hundred twenty-four million, five hundred twenty thousand".