4042400442525 has 72 divisors (see below), whose sum is σ = 7913593569024. Its totient is φ = 1963670745600.

The previous prime is 4042400442497. The next prime is 4042400442541. The reversal of 4042400442525 is 5252440042404.

4042400442525 is a `hidden beast` number, since 404 + 240 + 0 + 4 + 4 + 2 + 5 + 2 + 5 = 666.

It is not a de Polignac number, because 4042400442525 - 2¹² = 4042400438429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4042400442525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16927179 + ... + 17164328.

It is an arithmetic number, because the mean of its divisors is an integer number (109911021792).

Almost surely, 2^{4042400442525} is an apocalyptic number.

4042400442525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4042400442525 is a deficient number, since it is larger than the sum of its proper divisors (3871193126499).

4042400442525 is a wasteful number, since it uses less digits than its factorization.

4042400442525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34091571 (or 34091563 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

Adding to 4042400442525 its reverse (5252440042404), we get a palindrome (9294840484929).

The spelling of 4042400442525 in words is "four trillion, forty-two billion, four hundred million, four hundred forty-two thousand, five hundred twenty-five".