42504555540525 has 24 divisors (see below), whose sum is σ = 75679906071840. Its totient is φ = 20925319650240.

The previous prime is 42504555540497. The next prime is 42504555540533. The reversal of 42504555540525 is 52504555540524.

42504555540525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42504555540525 - 2¹⁴ = 42504555524141 is a prime.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 21797206995 + ... + 21797208944.

It is an arithmetic number, because the mean of its divisors is an integer number (3153329419660).

Almost surely, 2^{42504555540525} is an apocalyptic number.

It is an amenable number.

42504555540525 is a deficient number, since it is larger than the sum of its proper divisors (33175350531315).

42504555540525 is a wasteful number, since it uses less digits than its factorization.

42504555540525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43594415965 (or 43594415960 counting only the distinct ones).

The product of its (nonzero) digits is 20000000, while the sum is 51.

Subtracting 42504555540525 from its reverse (52504555540524), we obtain a palindrome (9999999999999).

The spelling of 42504555540525 in words is "forty-two trillion, five hundred four billion, five hundred fifty-five million, five hundred forty thousand, five hundred twenty-five".