242001534521525 has 24 divisors (see below), whose sum is σ = 301075935085440. Its totient is φ = 192960108820160.

The previous prime is 242001534521521. The next prime is 242001534521581. The reversal of 242001534521525 is 525125435100242.

It is not a de Polignac number, because 242001534521525 - 2² = 242001534521521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242001534521521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47994032 + ... + 52796118.

It is an arithmetic number, because the mean of its divisors is an integer number (12544830628560).

Almost surely, 2^{242001534521525} is an apocalyptic number.

242001534521525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242001534521525 is a deficient number, since it is larger than the sum of its proper divisors (59074400563915).

242001534521525 is a wasteful number, since it uses less digits than its factorization.

242001534521525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808773 (or 4808768 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 242001534521525 its reverse (525125435100242), we get a palindrome (767126969621767).

The spelling of 242001534521525 in words is "two hundred forty-two trillion, one billion, five hundred thirty-four million, five hundred twenty-one thousand, five hundred twenty-five".