240553130325521 has 32 divisors (see below), whose sum is σ = 260281901873952. Its totient is φ = 221001482557440.

The previous prime is 240553130325517. The next prime is 240553130325523. The reversal of 240553130325521 is 125523031355042.

It can be written as a sum of positive squares in 16 ways, for example, as 15944759761921 + 224608370563600 = 3993089^2 + 14986940^2 .

It is not a de Polignac number, because 240553130325521 - 2² = 240553130325517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240553130325523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10637813411 + ... + 10637836023.

It is an arithmetic number, because the mean of its divisors is an integer number (8133809433561).

Almost surely, 2^{240553130325521} is an apocalyptic number.

It is an amenable number.

240553130325521 is a deficient number, since it is larger than the sum of its proper divisors (19728771548431).

240553130325521 is a wasteful number, since it uses less digits than its factorization.

240553130325521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26453.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 240553130325521 in words is "two hundred forty trillion, five hundred fifty-three billion, one hundred thirty million, three hundred twenty-five thousand, five hundred twenty-one".