55163223751 has 2 divisors, whose sum is σ = 55163223752. Its totient is φ = 55163223750.

The previous prime is 55163223707. The next prime is 55163223769. The reversal of 55163223751 is 15732236155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55163223751 - 2¹³ = 55163215559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55163923751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27581611875 + 27581611876.

It is an arithmetic number, because the mean of its divisors is an integer number (27581611876).

Almost surely, 2^55163223751 is an apocalyptic number.

55163223751 is a deficient number, since it is larger than the sum of its proper divisors (1).

55163223751 is an equidigital number, since it uses as much as digits as its factorization.

55163223751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 40.

The spelling of 55163223751 in words is "fifty-five billion, one hundred sixty-three million, two hundred twenty-three thousand, seven hundred fifty-one".