551133411505 has 4 divisors (see below), whose sum is σ = 661360093812. Its totient is φ = 440906729200.

The previous prime is 551133411503. The next prime is 551133411509. The reversal of 551133411505 is 505114331155.

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 351496022641 + 199637388864 = 592871^2 + 446808^2 .

It is not a de Polignac number, because 551133411505 - 2¹ = 551133411503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551133411503) 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, 55113341146 + ... + 55113341155.

It is an arithmetic number, because the mean of its divisors is an integer number (165340023453).

Almost surely, 2^551133411505 is an apocalyptic number.

It is an amenable number.

551133411505 is a deficient number, since it is larger than the sum of its proper divisors (110226682307).

551133411505 is a wasteful number, since it uses less digits than its factorization.

551133411505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110226682306.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 551133411505 in words is "five hundred fifty-one billion, one hundred thirty-three million, four hundred eleven thousand, five hundred five".