551001110505 has 16 divisors (see below), whose sum is σ = 881614400640. Its totient is φ = 293863051008.

The previous prime is 551001110477. The next prime is 551001110567. The reversal of 551001110505 is 505011100155.

It is not a de Polignac number, because 551001110505 - 2⁹ = 551001109993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022001 + ... + 1465089.

It is an arithmetic number, because the mean of its divisors is an integer number (55100900040).

Almost surely, 2^551001110505 is an apocalyptic number.

It is an amenable number.

551001110505 is a deficient number, since it is larger than the sum of its proper divisors (330613290135).

551001110505 is a wasteful number, since it uses less digits than its factorization.

551001110505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526000.

The product of its (nonzero) digits is 625, while the sum is 24.

The spelling of 551001110505 in words is "five hundred fifty-one billion, one million, one hundred ten thousand, five hundred five".