55489926959 has 2 divisors, whose sum is σ = 55489926960. Its totient is φ = 55489926958.

The previous prime is 55489926929. The next prime is 55489926977. The reversal of 55489926959 is 95962998455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55489926959 - 2¹² = 55489922863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55489926892 and 55489926901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55489926929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27744963479 + 27744963480.

It is an arithmetic number, because the mean of its divisors is an integer number (27744963480).

Almost surely, 2^55489926959 is an apocalyptic number.

55489926959 is a deficient number, since it is larger than the sum of its proper divisors (1).

55489926959 is an equidigital number, since it uses as much as digits as its factorization.

55489926959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928000, while the sum is 71.

The spelling of 55489926959 in words is "fifty-five billion, four hundred eighty-nine million, nine hundred twenty-six thousand, nine hundred fifty-nine".