551348843155 has 16 divisors (see below), whose sum is σ = 722147983200. Its totient is φ = 400768629760.

The previous prime is 551348843153. The next prime is 551348843183.

It is a happy number.

551348843155 is nontrivially palindromic in base 10.

551348843155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551348843155 - 2¹ = 551348843153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551348843153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2549500 + ... + 2757289.

It is an arithmetic number, because the mean of its divisors is an integer number (45134248950).

Almost surely, 2^551348843155 is an apocalyptic number.

551348843155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551348843155 is a deficient number, since it is larger than the sum of its proper divisors (170799140045).

551348843155 is a wasteful number, since it uses less digits than its factorization.

551348843155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308694.

The product of its digits is 5760000, while the sum is 52.

It can be divided in two parts, 55134 and 8843155, that added together give a square (8898289 = 2983²).

The spelling of 551348843155 in words is "five hundred fifty-one billion, three hundred forty-eight million, eight hundred forty-three thousand, one hundred fifty-five".