51051100055555 has 16 divisors (see below), whose sum is σ = 62419108602240. Its totient is φ = 40069068294528.

The previous prime is 51051100055519. The next prime is 51051100055587. The reversal of 51051100055555 is 55555000115015.

It is a cyclic number.

It is not a de Polignac number, because 51051100055555 - 2¹⁶ = 51051099990019 is a prime.

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, 5749301 + ... + 11625689.

It is an arithmetic number, because the mean of its divisors is an integer number (3901194287640).

Almost surely, 2^{51051100055555} is an apocalyptic number.

51051100055555 is a deficient number, since it is larger than the sum of its proper divisors (11368008546685).

51051100055555 is a wasteful number, since it uses less digits than its factorization.

51051100055555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909230.

The product of its (nonzero) digits is 78125, while the sum is 38.

The spelling of 51051100055555 in words is "fifty-one trillion, fifty-one billion, one hundred million, fifty-five thousand, five hundred fifty-five".