42554444445525 has 24 divisors (see below), whose sum is σ = 70360075883200. Its totient is φ = 22694608736640.

The previous prime is 42554444445449. The next prime is 42554444445571. The reversal of 42554444445525 is 52554444445524.

It is not a de Polignac number, because 42554444445525 - 2¹⁴ = 42554444429141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12121000 + ... + 15232449.

Almost surely, 2^{42554444445525} is an apocalyptic number.

It is an amenable number.

42554444445525 is a deficient number, since it is larger than the sum of its proper divisors (27805631437675).

42554444445525 is a wasteful number, since it uses less digits than its factorization.

42554444445525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27374205 (or 27374200 counting only the distinct ones).

The product of its digits is 204800000, while the sum is 57.

Subtracting 42554444445525 from its reverse (52554444445524), we obtain a palindrome (9999999999999).

The spelling of 42554444445525 in words is "forty-two trillion, five hundred fifty-four billion, four hundred forty-four million, four hundred forty-five thousand, five hundred twenty-five".