51101100555 has 16 divisors (see below), whose sum is σ = 81877097760. Its totient is φ = 27215474688.

The previous prime is 51101100527. The next prime is 51101100629. The reversal of 51101100555 is 55500110115.

It is not a de Polignac number, because 51101100555 - 2¹⁰ = 51101099531 is a prime.

It is a super-2 number, since 2×51101100555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2391862 + ... + 2413131.

It is an arithmetic number, because the mean of its divisors is an integer number (5117318610).

Almost surely, 2^51101100555 is an apocalyptic number.

51101100555 is a deficient number, since it is larger than the sum of its proper divisors (30775997205).

51101100555 is a wasteful number, since it uses less digits than its factorization.

51101100555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805710.

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

The spelling of 51101100555 in words is "fifty-one billion, one hundred one million, one hundred thousand, five hundred fifty-five".