551424155 has 16 divisors (see below), whose sum is σ = 702522720. Its totient is φ = 414070272.

The previous prime is 551424151. The next prime is 551424161.

551424155 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 551424155 - 2² = 551424151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551424151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23657 + ... + 40773.

It is an arithmetic number, because the mean of its divisors is an integer number (43907670).

Almost surely, 2^551424155 is an apocalyptic number.

551424155 is a deficient number, since it is larger than the sum of its proper divisors (151098565).

551424155 is a wasteful number, since it uses less digits than its factorization.

551424155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17518.

The product of its digits is 20000, while the sum is 32.

The square root of 551424155 is about 23482.4222558066. The cubic root of 551424155 is about 820.0278371474.

Adding to 551424155 its product of digits (20000), we get a palindrome (551444155).

Subtracting from 551424155 its product of digits (20000), we obtain a palindrome (551404155).

The spelling of 551424155 in words is "five hundred fifty-one million, four hundred twenty-four thousand, one hundred fifty-five".