42510525205 has 8 divisors (see below), whose sum is σ = 51014376504. Its totient is φ = 34007256000.

The previous prime is 42510525203. The next prime is 42510525223. The reversal of 42510525205 is 50252501524.

It is a happy number.

42510525205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9067991076 + 33442534129 = 95226^2 + 182873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42510525205 - 2¹ = 42510525203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42510525203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35655 + ... + 293755.

It is an arithmetic number, because the mean of its divisors is an integer number (6376797063).

Almost surely, 2^42510525205 is an apocalyptic number.

It is an amenable number.

42510525205 is a deficient number, since it is larger than the sum of its proper divisors (8503851299).

42510525205 is a wasteful number, since it uses less digits than its factorization.

42510525205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291047.

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 42510525205 in words is "forty-two billion, five hundred ten million, five hundred twenty-five thousand, two hundred five".