551322154553 has 4 divisors (see below), whose sum is σ = 551335372368. Its totient is φ = 551308936740.

The previous prime is 551322154547. The next prime is 551322154571. The reversal of 551322154553 is 355451223155.

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 551322154553 - 2³² = 547027187257 is a prime.

It is a super-2 number, since 2×551322154553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551322154553.

It is not an unprimeable number, because it can be changed into a prime (551322154753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6546143 + ... + 6629828.

It is an arithmetic number, because the mean of its divisors is an integer number (137833843092).

Almost surely, 2^551322154553 is an apocalyptic number.

It is an amenable number.

551322154553 is a deficient number, since it is larger than the sum of its proper divisors (13217815).

551322154553 is a wasteful number, since it uses less digits than its factorization.

551322154553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217814.

The product of its digits is 450000, while the sum is 41.

The spelling of 551322154553 in words is "five hundred fifty-one billion, three hundred twenty-two million, one hundred fifty-four thousand, five hundred fifty-three".