551051136305 has 4 divisors (see below), whose sum is σ = 661261363572. Its totient is φ = 440840909040.

The previous prime is 551051136299. The next prime is 551051136329. The reversal of 551051136305 is 503631150155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 394881532816 + 156169603489 = 628396^2 + 395183^2 .

It is not a de Polignac number, because 551051136305 - 2²² = 551046942001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55105113626 + ... + 55105113635.

It is an arithmetic number, because the mean of its divisors is an integer number (165315340893).

Almost surely, 2^551051136305 is an apocalyptic number.

It is an amenable number.

551051136305 is a deficient number, since it is larger than the sum of its proper divisors (110210227267).

551051136305 is a wasteful number, since it uses less digits than its factorization.

551051136305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110210227266.

The product of its (nonzero) digits is 33750, while the sum is 35.

The spelling of 551051136305 in words is "five hundred fifty-one billion, fifty-one million, one hundred thirty-six thousand, three hundred five".