3550564206557 has 2 divisors, whose sum is σ = 3550564206558. Its totient is φ = 3550564206556.

The previous prime is 3550564206523. The next prime is 3550564206589. The reversal of 3550564206557 is 7556024650553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2560988895481 + 989575311076 = 1600309^2 + 994774^2 .

It is a cyclic number.

It is not a de Polignac number, because 3550564206557 - 2¹⁸ = 3550563944413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3550564206499 and 3550564206508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3550564256557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775282103278 + 1775282103279.

It is an arithmetic number, because the mean of its divisors is an integer number (1775282103279).

Almost surely, 2^{3550564206557} is an apocalyptic number.

It is an amenable number.

3550564206557 is a deficient number, since it is larger than the sum of its proper divisors (1).

3550564206557 is an equidigital number, since it uses as much as digits as its factorization.

3550564206557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900000, while the sum is 53.

The spelling of 3550564206557 in words is "three trillion, five hundred fifty billion, five hundred sixty-four million, two hundred six thousand, five hundred fifty-seven".