655489902 has 16 divisors (see below), whose sum is σ = 1335715920. Its totient is φ = 214373952.

The previous prime is 655489867. The next prime is 655489909. The reversal of 655489902 is 209984556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655489909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030327 + ... + 1030962.

It is an arithmetic number, because the mean of its divisors is an integer number (83482245).

Almost surely, 2^655489902 is an apocalyptic number.

655489902 is an abundant number, since it is smaller than the sum of its proper divisors (680226018).

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

655489902 is a wasteful number, since it uses less digits than its factorization.

655489902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061347.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 655489902 is about 25602.5370227249. The cubic root of 655489902 is about 868.6710241890.

The spelling of 655489902 in words is "six hundred fifty-five million, four hundred eighty-nine thousand, nine hundred two".