42042605525 has 24 divisors (see below), whose sum is σ = 52982067264. Its totient is φ = 33087542400.

The previous prime is 42042605467. The next prime is 42042605557. The reversal of 42042605525 is 52550624024.

It is not a de Polignac number, because 42042605525 - 2¹⁰ = 42042604501 is a prime.

It is a Duffinian number.

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, 1258184 + ... + 1291166.

It is an arithmetic number, because the mean of its divisors is an integer number (2207586136).

Almost surely, 2^42042605525 is an apocalyptic number.

It is an amenable number.

42042605525 is a deficient number, since it is larger than the sum of its proper divisors (10939461739).

42042605525 is a wasteful number, since it uses less digits than its factorization.

42042605525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33821 (or 33816 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 42042605525 in words is "forty-two billion, forty-two million, six hundred five thousand, five hundred twenty-five".