3555149987 has 2 divisors, whose sum is σ = 3555149988. Its totient is φ = 3555149986.

The previous prime is 3555149971. The next prime is 3555150017. The reversal of 3555149987 is 7899415553.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3555149987 - 2⁴ = 3555149971 is a prime.

It is a super-2 number, since 2×3555149987² = 25278182860132200338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3555149947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777574993 + 1777574994.

It is an arithmetic number, because the mean of its divisors is an integer number (1777574994).

Almost surely, 2^3555149987 is an apocalyptic number.

3555149987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3555149987 is an equidigital number, since it uses as much as digits as its factorization.

3555149987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804000, while the sum is 56.

The square root of 3555149987 is about 59625.0785072858. The cubic root of 3555149987 is about 1526.2276220184.

The spelling of 3555149987 in words is "three billion, five hundred fifty-five million, one hundred forty-nine thousand, nine hundred eighty-seven".