4042051631525 has 6 divisors (see below), whose sum is σ = 5012144023122. Its totient is φ = 3233641305200.

The previous prime is 4042051631503. The next prime is 4042051631537. The reversal of 4042051631525 is 5251361502404.

It can be written as a sum of positive squares in 3 ways, for example, as 15985303489 + 4026066328036 = 126433^2 + 2006506^2 .

It is not a de Polignac number, because 4042051631525 - 2¹⁰ = 4042051630501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80841032606 + ... + 80841032655.

It is an arithmetic number, because the mean of its divisors is an integer number (835357337187).

Almost surely, 2^{4042051631525} is an apocalyptic number.

It is an amenable number.

4042051631525 is a deficient number, since it is larger than the sum of its proper divisors (970092391597).

4042051631525 is a wasteful number, since it uses less digits than its factorization.

4042051631525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161682065271 (or 161682065266 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 4042051631525 in words is "four trillion, forty-two billion, fifty-one million, six hundred thirty-one thousand, five hundred twenty-five".