551394839 has 8 divisors (see below), whose sum is σ = 581667840. Its totient is φ = 521247096.

The previous prime is 551394829. The next prime is 551394853. The reversal of 551394839 is 938493155.

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 551394839 - 2⁸ = 551394583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551394793 and 551394802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551394829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22199 + ... + 39944.

It is an arithmetic number, because the mean of its divisors is an integer number (72708480).

Almost surely, 2^551394839 is an apocalyptic number.

551394839 is a deficient number, since it is larger than the sum of its proper divisors (30273001).

551394839 is a wasteful number, since it uses less digits than its factorization.

551394839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62629.

The product of its digits is 583200, while the sum is 47.

The square root of 551394839 is about 23481.7980359256. The cubic root of 551394839 is about 820.0133048605.

The spelling of 551394839 in words is "five hundred fifty-one million, three hundred ninety-four thousand, eight hundred thirty-nine".