55420144105 has 16 divisors (see below), whose sum is σ = 66671916480. Its totient is φ = 44224428352.

The previous prime is 55420144099. The next prime is 55420144111. The reversal of 55420144105 is 50144102455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55420144099) and next prime (55420144111).

It is a cyclic number.

It is not a de Polignac number, because 55420144105 - 2³ = 55420144097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3441282 + ... + 3457348.

It is an arithmetic number, because the mean of its divisors is an integer number (4166994780).

Almost surely, 2^55420144105 is an apocalyptic number.

It is an amenable number.

55420144105 is a deficient number, since it is larger than the sum of its proper divisors (11251772375).

55420144105 is a wasteful number, since it uses less digits than its factorization.

55420144105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17768.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 55420144105 in words is "fifty-five billion, four hundred twenty million, one hundred forty-four thousand, one hundred five".