42002036356625 has 8 divisors (see below), whose sum is σ = 52418541373224. Its totient is φ = 33601629085200.

The previous prime is 42002036356613. The next prime is 42002036356703. The reversal of 42002036356625 is 52665363020024.

42002036356625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11649316624 + 41990387040001 = 107932^2 + 6479999^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42002036356625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168008145302 + ... + 168008145551.

It is an arithmetic number, because the mean of its divisors is an integer number (6552317671653).

Almost surely, 2^{42002036356625} is an apocalyptic number.

It is an amenable number.

42002036356625 is a deficient number, since it is larger than the sum of its proper divisors (10416505016599).

42002036356625 is an equidigital number, since it uses as much as digits as its factorization.

42002036356625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336016290868 (or 336016290858 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 44.

Adding to 42002036356625 its reverse (52665363020024), we get a palindrome (94667399376649).

The spelling of 42002036356625 in words is "forty-two trillion, two billion, thirty-six million, three hundred fifty-six thousand, six hundred twenty-five".