551139369 has 8 divisors (see below), whose sum is σ = 801657312. Its totient is φ = 334023840.

The previous prime is 551139367. The next prime is 551139419. The reversal of 551139369 is 963931155.

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

It is not a de Polignac number, because 551139369 - 2¹ = 551139367 is a prime.

It is a super-3 number, since 3×551139369³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 551139369.

It is not an unprimeable number, because it can be changed into a prime (551139367) 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, 8350564 + ... + 8350629.

It is an arithmetic number, because the mean of its divisors is an integer number (100207164).

Almost surely, 2^551139369 is an apocalyptic number.

It is an amenable number.

551139369 is a deficient number, since it is larger than the sum of its proper divisors (250517943).

551139369 is a wasteful number, since it uses less digits than its factorization.

551139369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16701207.

The product of its digits is 109350, while the sum is 42.

The square root of 551139369 is about 23476.3576604208. The cubic root of 551139369 is about 819.8866435610.

The spelling of 551139369 in words is "five hundred fifty-one million, one hundred thirty-nine thousand, three hundred sixty-nine".