655189892 has 36 divisors (see below), whose sum is σ = 1328878656. Its totient is φ = 276886080.

The previous prime is 655189879. The next prime is 655189903. The reversal of 655189892 is 298981556.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147017 + ... + 151407.

It is an arithmetic number, because the mean of its divisors is an integer number (36913296).

Almost surely, 2^655189892 is an apocalyptic number.

It is an amenable number.

655189892 is an abundant number, since it is smaller than the sum of its proper divisors (673688764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655189892 is a wasteful number, since it uses less digits than its factorization.

655189892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4548 (or 4473 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 53.

The square root of 655189892 is about 25596.6773625016. The cubic root of 655189892 is about 868.5384771365.

The spelling of 655189892 in words is "six hundred fifty-five million, one hundred eighty-nine thousand, eight hundred ninety-two".