42567320525 has 12 divisors (see below), whose sum is σ = 52908866964. Its totient is φ = 33972960000.

The previous prime is 42567320479. The next prime is 42567320533. The reversal of 42567320525 is 52502376524.

It can be written as a sum of positive squares in 6 ways, for example, as 1973936041 + 40593384484 = 44429^2 + 201478^2 .

It is not a de Polignac number, because 42567320525 - 2¹⁴ = 42567304141 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, 2011676 + ... + 2032725.

It is an arithmetic number, because the mean of its divisors is an integer number (4409072247).

Almost surely, 2^42567320525 is an apocalyptic number.

It is an amenable number.

42567320525 is a deficient number, since it is larger than the sum of its proper divisors (10341546439).

42567320525 is a wasteful number, since it uses less digits than its factorization.

42567320525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044832 (or 4044827 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 41.

The spelling of 42567320525 in words is "forty-two billion, five hundred sixty-seven million, three hundred twenty thousand, five hundred twenty-five".