55577842404143 has 4 divisors (see below), whose sum is σ = 56069681717568. Its totient is φ = 55086003090720.

The previous prime is 55577842404137. The next prime is 55577842404163. The reversal of 55577842404143 is 34140424877555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55577842404143 - 2⁶ = 55577842404079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55577842404163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245919656543 + ... + 245919656768.

It is an arithmetic number, because the mean of its divisors is an integer number (14017420429392).

Almost surely, 2^{55577842404143} is an apocalyptic number.

55577842404143 is a deficient number, since it is larger than the sum of its proper divisors (491839313425).

55577842404143 is a wasteful number, since it uses less digits than its factorization.

55577842404143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491839313424.

The product of its (nonzero) digits is 75264000, while the sum is 59.

The spelling of 55577842404143 in words is "fifty-five trillion, five hundred seventy-seven billion, eight hundred forty-two million, four hundred four thousand, one hundred forty-three".