55651000649 has 2 divisors, whose sum is σ = 55651000650. Its totient is φ = 55651000648.

The previous prime is 55651000637. The next prime is 55651000679. The reversal of 55651000649 is 94600015655.

55651000649 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 can be written as a sum of positive squares in only one way, i.e., 47630007049 + 8020993600 = 218243^2 + 89560^2 .

It is a cyclic number.

It is not a de Polignac number, because 55651000649 - 2¹⁶ = 55650935113 is a prime.

It is not a weakly prime, because it can be changed into another prime (55651000679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825500324 + 27825500325.

It is an arithmetic number, because the mean of its divisors is an integer number (27825500325).

Almost surely, 2^55651000649 is an apocalyptic number.

It is an amenable number.

55651000649 is a deficient number, since it is larger than the sum of its proper divisors (1).

55651000649 is an equidigital number, since it uses as much as digits as its factorization.

55651000649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 55651000649 in words is "fifty-five billion, six hundred fifty-one million, six hundred forty-nine", and thus it is an aban number.