55442171963 has 2 divisors, whose sum is σ = 55442171964. Its totient is φ = 55442171962.

The previous prime is 55442171959. The next prime is 55442172031. The reversal of 55442171963 is 36917124455.

It is a happy number.

55442171963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55442171963 - 2² = 55442171959 is a prime.

It is not a weakly prime, because it can be changed into another prime (55442171903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27721085981 + 27721085982.

It is an arithmetic number, because the mean of its divisors is an integer number (27721085982).

Almost surely, 2^55442171963 is an apocalyptic number.

55442171963 is a deficient number, since it is larger than the sum of its proper divisors (1).

55442171963 is an equidigital number, since it uses as much as digits as its factorization.

55442171963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The spelling of 55442171963 in words is "fifty-five billion, four hundred forty-two million, one hundred seventy-one thousand, nine hundred sixty-three".