242115403525 has 48 divisors (see below), whose sum is σ = 330025127040. Its totient is φ = 175381113600.

The previous prime is 242115403511. The next prime is 242115403529. The reversal of 242115403525 is 525304511242.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-242115403525 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242115403529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14991955 + ... + 15008095.

It is an arithmetic number, because the mean of its divisors is an integer number (6875523480).

Almost surely, 2^242115403525 is an apocalyptic number.

242115403525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242115403525 is a deficient number, since it is larger than the sum of its proper divisors (87909723515).

242115403525 is a wasteful number, since it uses less digits than its factorization.

242115403525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17566 (or 17561 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 242115403525 its reverse (525304511242), we get a palindrome (767419914767).

The spelling of 242115403525 in words is "two hundred forty-two billion, one hundred fifteen million, four hundred three thousand, five hundred twenty-five".