551078129 has 8 divisors (see below), whose sum is σ = 631818240. Its totient is φ = 470841696.

The previous prime is 551078117. The next prime is 551078173. The reversal of 551078129 is 921870155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551078129 - 2²⁴ = 534300913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551078092 and 551078101.

It is not an unprimeable number, because it can be changed into a prime (551078029) 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 7 ways as a sum of consecutive naturals, for example, 123569 + ... + 127950.

It is an arithmetic number, because the mean of its divisors is an integer number (78977280).

Almost surely, 2^551078129 is an apocalyptic number.

It is an amenable number.

551078129 is a deficient number, since it is larger than the sum of its proper divisors (80740111).

551078129 is a wasteful number, since it uses less digits than its factorization.

551078129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251839.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 551078129 is about 23475.0533332727. The cubic root of 551078129 is about 819.8562751275.

It can be divided in two parts, 55107 and 8129, that added together give a palindrome (63236).

The spelling of 551078129 in words is "five hundred fifty-one million, seventy-eight thousand, one hundred twenty-nine".