55606506497 has 2 divisors, whose sum is σ = 55606506498. Its totient is φ = 55606506496.

The previous prime is 55606506481. The next prime is 55606506509. The reversal of 55606506497 is 79460560655.

It is a happy number.

55606506497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54461090161 + 1145416336 = 233369^2 + 33844^2 .

It is a cyclic number.

It is not a de Polignac number, because 55606506497 - 2⁴ = 55606506481 is a prime.

It is a super-2 number, since 2×55606506497² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55606506407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803253248 + 27803253249.

It is an arithmetic number, because the mean of its divisors is an integer number (27803253249).

Almost surely, 2^55606506497 is an apocalyptic number.

It is an amenable number.

55606506497 is a deficient number, since it is larger than the sum of its proper divisors (1).

55606506497 is an equidigital number, since it uses as much as digits as its factorization.

55606506497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 55606506497 in words is "fifty-five billion, six hundred six million, five hundred six thousand, four hundred ninety-seven".