551520242241 has 16 divisors (see below), whose sum is σ = 788071231104. Its totient is φ = 342188820864.

The previous prime is 551520242237. The next prime is 551520242261. The reversal of 551520242241 is 142242025155.

It is not a de Polignac number, because 551520242241 - 2² = 551520242237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551520242261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108011596 + ... + 108016701.

It is an arithmetic number, because the mean of its divisors is an integer number (49254451944).

Almost surely, 2^551520242241 is an apocalyptic number.

It is an amenable number.

551520242241 is a deficient number, since it is larger than the sum of its proper divisors (236550988863).

551520242241 is a wasteful number, since it uses less digits than its factorization.

551520242241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216028360.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 551520242241 its reverse (142242025155), we get a palindrome (693762267396).

The spelling of 551520242241 in words is "five hundred fifty-one billion, five hundred twenty million, two hundred forty-two thousand, two hundred forty-one".