551206071005 has 8 divisors (see below), whose sum is σ = 662110728792. Its totient is φ = 440522561088.

The previous prime is 551206071001. The next prime is 551206071037. The reversal of 551206071005 is 500170602155.

It can be written as a sum of positive squares in 4 ways, for example, as 235445241529 + 315760829476 = 485227^2 + 561926^2 .

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 551206071005 - 2² = 551206071001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551206071001) 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, 55281482 + ... + 55291451.

It is an arithmetic number, because the mean of its divisors is an integer number (82763841099).

Almost surely, 2^551206071005 is an apocalyptic number.

It is an amenable number.

551206071005 is a deficient number, since it is larger than the sum of its proper divisors (110904657787).

551206071005 is a wasteful number, since it uses less digits than its factorization.

551206071005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110573935.

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 551206071005 in words is "five hundred fifty-one billion, two hundred six million, seventy-one thousand, five".