5655381890 has 8 divisors (see below), whose sum is σ = 10179687420. Its totient is φ = 2262152752.

The previous prime is 5655381881. The next prime is 5655381899. The reversal of 5655381890 is 981835565.

It is an interprime number because it is at equal distance from previous prime (5655381881) and next prime (5655381899).

It can be written as a sum of positive squares in 2 ways, for example, as 5544142681 + 111239209 = 74459^2 + 10547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (5655381899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282769085 + ... + 282769104.

Almost surely, 2^5655381890 is an apocalyptic number.

5655381890 is a deficient number, since it is larger than the sum of its proper divisors (4524305530).

5655381890 is a wasteful number, since it uses less digits than its factorization.

5655381890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565538196.

The product of its (nonzero) digits is 1296000, while the sum is 50.

The square root of 5655381890 is about 75202.2731704302. The cubic root of 5655381890 is about 1781.6428348069.

The spelling of 5655381890 in words is "five billion, six hundred fifty-five million, three hundred eighty-one thousand, eight hundred ninety".