242045252521 has 16 divisors (see below), whose sum is σ = 248525687808. Its totient is φ = 235641952000.

The previous prime is 242045252461. The next prime is 242045252539. The reversal of 242045252521 is 125252540242.

242045252521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 242045252521 - 2¹⁵ = 242045219753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242045256521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4029510 + ... + 4089136.

It is an arithmetic number, because the mean of its divisors is an integer number (15532855488).

Almost surely, 2^242045252521 is an apocalyptic number.

It is an amenable number.

242045252521 is a deficient number, since it is larger than the sum of its proper divisors (6480435287).

242045252521 is a wasteful number, since it uses less digits than its factorization.

242045252521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60272.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 242045252521 its reverse (125252540242), we get a palindrome (367297792763).

It can be divided in two parts, 24204 and 5252521, that added together give a palindrome (5276725).

The spelling of 242045252521 in words is "two hundred forty-two billion, forty-five million, two hundred fifty-two thousand, five hundred twenty-one".