551322320541 has 8 divisors (see below), whose sum is σ = 773785713120. Its totient is φ = 348203570832.

The previous prime is 551322320513. The next prime is 551322320543. The reversal of 551322320541 is 145023223155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551322320541 - 2¹³ = 551322312349 is a prime.

It is a super-2 number, since 2×551322320541² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551322320543) 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 7 ways as a sum of consecutive naturals, for example, 4836160650 + ... + 4836160763.

It is an arithmetic number, because the mean of its divisors is an integer number (96723214140).

Almost surely, 2^551322320541 is an apocalyptic number.

It is an amenable number.

551322320541 is a deficient number, since it is larger than the sum of its proper divisors (222463392579).

551322320541 is a wasteful number, since it uses less digits than its factorization.

551322320541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9672321435.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 551322320541 its reverse (145023223155), we get a palindrome (696345543696).

The spelling of 551322320541 in words is "five hundred fifty-one billion, three hundred twenty-two million, three hundred twenty thousand, five hundred forty-one".