55489350503 has 2 divisors, whose sum is σ = 55489350504. Its totient is φ = 55489350502.

The previous prime is 55489350403. The next prime is 55489350517. The reversal of 55489350503 is 30505398455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55489350503 - 2¹⁴ = 55489334119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55489350403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27744675251 + 27744675252.

It is an arithmetic number, because the mean of its divisors is an integer number (27744675252).

Almost surely, 2^55489350503 is an apocalyptic number.

55489350503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55489350503 is an equidigital number, since it uses as much as digits as its factorization.

55489350503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 55489350503 in words is "fifty-five billion, four hundred eighty-nine million, three hundred fifty thousand, five hundred three".