5639553985 has 16 divisors (see below), whose sum is σ = 7289666496. Its totient is φ = 4163663808.

The previous prime is 5639553979. The next prime is 5639554001. The reversal of 5639553985 is 5893559365.

It is a cyclic number.

It is not a de Polignac number, because 5639553985 - 2⁹ = 5639553473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450582 + ... + 462928.

It is an arithmetic number, because the mean of its divisors is an integer number (455604156).

Almost surely, 2^5639553985 is an apocalyptic number.

It is an amenable number.

5639553985 is a deficient number, since it is larger than the sum of its proper divisors (1650112511).

5639553985 is a wasteful number, since it uses less digits than its factorization.

5639553985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19392.

The product of its digits is 21870000, while the sum is 58.

The square root of 5639553985 is about 75096.9638866978. The cubic root of 5639553985 is about 1779.9791674749.

The spelling of 5639553985 in words is "five billion, six hundred thirty-nine million, five hundred fifty-three thousand, nine hundred eighty-five".