55011542443 has 16 divisors (see below), whose sum is σ = 65848368096. Its totient is φ = 45292515840.

The previous prime is 55011542419. The next prime is 55011542461. The reversal of 55011542443 is 34424511055.

It is not a de Polignac number, because 55011542443 - 2⁹ = 55011541931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55011542399 and 55011542408.

It is not an unprimeable number, because it can be changed into a prime (55011542473) 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, 3621630 + ... + 3636787.

It is an arithmetic number, because the mean of its divisors is an integer number (4115523006).

Almost surely, 2^55011542443 is an apocalyptic number.

55011542443 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55011542443 is a deficient number, since it is larger than the sum of its proper divisors (10836825653).

55011542443 is a wasteful number, since it uses less digits than its factorization.

55011542443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7258494.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 55011542443 in words is "fifty-five billion, eleven million, five hundred forty-two thousand, four hundred forty-three".