55545501305 has 16 divisors (see below), whose sum is σ = 78235518720. Its totient is φ = 37058928192.

The previous prime is 55545501301. The next prime is 55545501307. The reversal of 55545501305 is 50310554555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55545501305 - 2² = 55545501301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55545501301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21444845 + ... + 21447434.

It is an arithmetic number, because the mean of its divisors is an integer number (4889719920).

Almost surely, 2^55545501305 is an apocalyptic number.

It is an amenable number.

55545501305 is a deficient number, since it is larger than the sum of its proper divisors (22690017415).

55545501305 is a wasteful number, since it uses less digits than its factorization.

55545501305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42892328.

The product of its (nonzero) digits is 187500, while the sum is 38.

The spelling of 55545501305 in words is "fifty-five billion, five hundred forty-five million, five hundred one thousand, three hundred five".