5655631389 has 16 divisors (see below), whose sum is σ = 7742044800. Its totient is φ = 3670231040.

The previous prime is 5655631379. The next prime is 5655631427. The reversal of 5655631389 is 9831365565.

It is a cyclic number.

It is not a de Polignac number, because 5655631389 - 2⁵ = 5655631357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5655631369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4024 + ... + 106430.

It is an arithmetic number, because the mean of its divisors is an integer number (483877800).

Almost surely, 2^5655631389 is an apocalyptic number.

It is an amenable number.

5655631389 is a deficient number, since it is larger than the sum of its proper divisors (2086413411).

5655631389 is a wasteful number, since it uses less digits than its factorization.

5655631389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102900.

The product of its digits is 2916000, while the sum is 51.

The square root of 5655631389 is about 75203.9320049158. The cubic root of 5655631389 is about 1781.6690347216.

The spelling of 5655631389 in words is "five billion, six hundred fifty-five million, six hundred thirty-one thousand, three hundred eighty-nine".