510551055111 has 4 divisors (see below), whose sum is σ = 680734740152. Its totient is φ = 340367370072.

The previous prime is 510551055107. The next prime is 510551055121. The reversal of 510551055111 is 111550155015.

It is a happy number.

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

It is not a de Polignac number, because 510551055111 - 2² = 510551055107 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 (510551055121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85091842516 + ... + 85091842521.

It is an arithmetic number, because the mean of its divisors is an integer number (170183685038).

Almost surely, 2^510551055111 is an apocalyptic number.

510551055111 is a deficient number, since it is larger than the sum of its proper divisors (170183685041).

510551055111 is a wasteful number, since it uses less digits than its factorization.

510551055111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170183685040.

The product of its (nonzero) digits is 3125, while the sum is 30.

The spelling of 510551055111 in words is "five hundred ten billion, five hundred fifty-one million, fifty-five thousand, one hundred eleven".