551318429939 has 4 divisors (see below), whose sum is σ = 559083478320. Its totient is φ = 543553381560.

The previous prime is 551318429933. The next prime is 551318429953. The reversal of 551318429939 is 939924813155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551318429939 - 2²⁴ = 551301652723 is a prime.

It is a super-2 number, since 2×551318429939² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551318429933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3882524084 + ... + 3882524225.

It is an arithmetic number, because the mean of its divisors is an integer number (139770869580).

Almost surely, 2^551318429939 is an apocalyptic number.

551318429939 is a deficient number, since it is larger than the sum of its proper divisors (7765048381).

551318429939 is an equidigital number, since it uses as much as digits as its factorization.

551318429939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765048380.

The product of its digits is 10497600, while the sum is 59.

The spelling of 551318429939 in words is "five hundred fifty-one billion, three hundred eighteen million, four hundred twenty-nine thousand, nine hundred thirty-nine".