55306534643 has 16 divisors (see below), whose sum is σ = 58547681280. Its totient is φ = 52137530016.

The previous prime is 55306534637. The next prime is 55306534649. The reversal of 55306534643 is 34643560355.

It is an interprime number because it is at equal distance from previous prime (55306534637) and next prime (55306534649).

It is a cyclic number.

It is not a de Polignac number, because 55306534643 - 2³⁰ = 54232792819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55306534594 and 55306534603.

It is not an unprimeable number, because it can be changed into a prime (55306534649) 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, 984746 + ... + 1039392.

It is an arithmetic number, because the mean of its divisors is an integer number (3659230080).

Almost surely, 2^55306534643 is an apocalyptic number.

55306534643 is a deficient number, since it is larger than the sum of its proper divisors (3241146637).

55306534643 is a wasteful number, since it uses less digits than its factorization.

55306534643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55306.

The product of its (nonzero) digits is 1944000, while the sum is 44.

The spelling of 55306534643 in words is "fifty-five billion, three hundred six million, five hundred thirty-four thousand, six hundred forty-three".