55556755901945 has 32 divisors (see below), whose sum is σ = 68315370330240. Its totient is φ = 43350200409600.

The previous prime is 55556755901893. The next prime is 55556755901951. The reversal of 55556755901945 is 54910955765555.

It is not a de Polignac number, because 55556755901945 - 2¹⁶ = 55556755836409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527046245 + ... + 527151645.

It is an arithmetic number, because the mean of its divisors is an integer number (2134855322820).

Almost surely, 2^{55556755901945} is an apocalyptic number.

It is an amenable number.

55556755901945 is a deficient number, since it is larger than the sum of its proper divisors (12758614428295).

55556755901945 is a wasteful number, since it uses less digits than its factorization.

55556755901945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108905.

The product of its (nonzero) digits is 1063125000, while the sum is 71.

The spelling of 55556755901945 in words is "fifty-five trillion, five hundred fifty-six billion, seven hundred fifty-five million, nine hundred one thousand, nine hundred forty-five".