42541424525 has 12 divisors (see below), whose sum is σ = 52755745812. Its totient is φ = 34030314240.

The previous prime is 42541424509. The next prime is 42541424543. The reversal of 42541424525 is 52542414524.

It can be written as a sum of positive squares in 6 ways, for example, as 3116542276 + 39424882249 = 55826^2 + 198557^2 .

It is not a de Polignac number, because 42541424525 - 2⁴ = 42541424509 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 11 ways as a sum of consecutive naturals, for example, 268439 + ... + 396411.

It is an arithmetic number, because the mean of its divisors is an integer number (4396312151).

Almost surely, 2^42541424525 is an apocalyptic number.

It is an amenable number.

42541424525 is a deficient number, since it is larger than the sum of its proper divisors (10214321287).

42541424525 is a wasteful number, since it uses less digits than its factorization.

42541424525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141280 (or 141275 counting only the distinct ones).

The product of its digits is 256000, while the sum is 38.

The spelling of 42541424525 in words is "forty-two billion, five hundred forty-one million, four hundred twenty-four thousand, five hundred twenty-five".