1055556100051 has 2 divisors, whose sum is σ = 1055556100052. Its totient is φ = 1055556100050.

The previous prime is 1055556100033. The next prime is 1055556100103. The reversal of 1055556100051 is 1500016555501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1055556100051 - 2³⁵ = 1021196361683 is a prime.

It is a super-2 number, since 2×1055556100051² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055556100451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527778050025 + 527778050026.

It is an arithmetic number, because the mean of its divisors is an integer number (527778050026).

Almost surely, 2^{1055556100051} is an apocalyptic number.

1055556100051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055556100051 is an equidigital number, since it uses as much as digits as its factorization.

1055556100051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 1055556100051 in words is "one trillion, fifty-five billion, five hundred fifty-six million, one hundred thousand, fifty-one".