551828155 has 16 divisors (see below), whose sum is σ = 669428064. Its totient is φ = 436656640.

The previous prime is 551828131. The next prime is 551828161.

551828155 is nontrivially palindromic in base 10.

551828155 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 551828155 - 2²¹ = 549731003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466665 + ... + 467845.

It is an arithmetic number, because the mean of its divisors is an integer number (41839254).

Almost surely, 2^551828155 is an apocalyptic number.

551828155 is a deficient number, since it is larger than the sum of its proper divisors (117599909).

551828155 is a wasteful number, since it uses less digits than its factorization.

551828155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its digits is 80000, while the sum is 40.

The square root of 551828155 is about 23491.0228598075. The cubic root of 551828155 is about 820.2280522749.

The spelling of 551828155 in words is "five hundred fifty-one million, eight hundred twenty-eight thousand, one hundred fifty-five".