3550703317561 has 27 divisors (see below), whose sum is σ = 3797721827949. Its totient is φ = 3319075698048.

The previous prime is 3550703317549. The next prime is 3550703317613. The reversal of 3550703317561 is 1657133070553.

The square root of 3550703317561 is 1884331.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 125612827561 + 3425090490000 = 354419^2 + 1850700^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3550703317561 is a prime.

It is a super-2 number, since 2×3550703317561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3550703317961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6374691495 + ... + 6374692051.

Almost surely, 2^{3550703317561} is an apocalyptic number.

3550703317561 is the 1884331-st square number.

3550703317561 is the 942166-th centered octagonal number.

It is an amenable number.

3550703317561 is a deficient number, since it is larger than the sum of its proper divisors (247018510388).

3550703317561 is an frugal number, since it uses more digits than its factorization.

3550703317561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 992250, while the sum is 46.

The spelling of 3550703317561 in words is "three trillion, five hundred fifty billion, seven hundred three million, three hundred seventeen thousand, five hundred sixty-one".