3550666525 has 12 divisors (see below), whose sum is σ = 5031801952. Its totient is φ = 2434742640.

The previous prime is 3550666513. The next prime is 3550666549. The reversal of 3550666525 is 5256660553.

It is not a de Polignac number, because 3550666525 - 2¹¹ = 3550664477 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10144587 + ... + 10144936.

Almost surely, 2^3550666525 is an apocalyptic number.

3550666525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3550666525 is a deficient number, since it is larger than the sum of its proper divisors (1481135427).

3550666525 is a wasteful number, since it uses less digits than its factorization.

3550666525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289540 (or 20289535 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 43.

The square root of 3550666525 is about 59587.4695300950. The cubic root of 3550666525 is about 1525.5857679844.

The spelling of 3550666525 in words is "three billion, five hundred fifty million, six hundred sixty-six thousand, five hundred twenty-five".