55486529849 has 2 divisors, whose sum is σ = 55486529850. Its totient is φ = 55486529848.

The previous prime is 55486529831. The next prime is 55486529851. The reversal of 55486529849 is 94892568455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31129309225 + 24357220624 = 176435^2 + 156068^2 .

It is a cyclic number.

It is not a de Polignac number, because 55486529849 - 2¹² = 55486525753 is a prime.

Together with 55486529851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55486529869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27743264924 + 27743264925.

It is an arithmetic number, because the mean of its divisors is an integer number (27743264925).

Almost surely, 2^55486529849 is an apocalyptic number.

It is an amenable number.

55486529849 is a deficient number, since it is larger than the sum of its proper divisors (1).

55486529849 is an equidigital number, since it uses as much as digits as its factorization.

55486529849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416000, while the sum is 65.

The spelling of 55486529849 in words is "fifty-five billion, four hundred eighty-six million, five hundred twenty-nine thousand, eight hundred forty-nine".