551036454361 has 4 divisors (see below), whose sum is σ = 564476367924. Its totient is φ = 537596540800.

The previous prime is 551036454359. The next prime is 551036454373. The reversal of 551036454361 is 163454630155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40981953600 + 510054500761 = 202440^2 + 714181^2 .

It is a cyclic number.

It is not a de Polignac number, because 551036454361 - 2¹ = 551036454359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551036454461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6719956720 + ... + 6719956801.

It is an arithmetic number, because the mean of its divisors is an integer number (141119091981).

Almost surely, 2^551036454361 is an apocalyptic number.

It is an amenable number.

551036454361 is a deficient number, since it is larger than the sum of its proper divisors (13439913563).

551036454361 is a wasteful number, since it uses less digits than its factorization.

551036454361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439913562.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 551036454361 in words is "five hundred fifty-one billion, thirty-six million, four hundred fifty-four thousand, three hundred sixty-one".