551005261241 has 4 divisors (see below), whose sum is σ = 559229220432. Its totient is φ = 542781302052.

The previous prime is 551005261237. The next prime is 551005261243. The reversal of 551005261241 is 142162500155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551005261241 - 2² = 551005261237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551005261198 and 551005261207.

It is not an unprimeable number, because it can be changed into a prime (551005261243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4111979495 + ... + 4111979628.

It is an arithmetic number, because the mean of its divisors is an integer number (139807305108).

Almost surely, 2^551005261241 is an apocalyptic number.

It is an amenable number.

551005261241 is a deficient number, since it is larger than the sum of its proper divisors (8223959191).

551005261241 is an equidigital number, since it uses as much as digits as its factorization.

551005261241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223959190.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 551005261241 its reverse (142162500155), we get a palindrome (693167761396).

The spelling of 551005261241 in words is "five hundred fifty-one billion, five million, two hundred sixty-one thousand, two hundred forty-one".