242553340521 has 24 divisors (see below), whose sum is σ = 353162833920. Its totient is φ = 160406580096.

The previous prime is 242553340501. The next prime is 242553340559. The reversal of 242553340521 is 125043355242.

242553340521 is a `hidden beast` number, since 2 + 42 + 5 + 53 + 3 + 40 + 521 = 666.

It is not a de Polignac number, because 242553340521 - 2¹⁵ = 242553307753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242553340501) 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, 13836400 + ... + 13853918.

It is an arithmetic number, because the mean of its divisors is an integer number (14715118080).

Almost surely, 2^242553340521 is an apocalyptic number.

It is an amenable number.

242553340521 is a deficient number, since it is larger than the sum of its proper divisors (110609493399).

242553340521 is a wasteful number, since it uses less digits than its factorization.

242553340521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29765 (or 29762 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 242553340521 its reverse (125043355242), we get a palindrome (367596695763).

The spelling of 242553340521 in words is "two hundred forty-two billion, five hundred fifty-three million, three hundred forty thousand, five hundred twenty-one".