655304481 has 24 divisors (see below), whose sum is σ = 1020446336. Its totient is φ = 402835680.

The previous prime is 655304479. The next prime is 655304497. The reversal of 655304481 is 184403556.

It is a happy number.

655304481 is a `hidden beast` number, since 6 + 5 + 530 + 44 + 81 = 666.

It is not a de Polignac number, because 655304481 - 2¹ = 655304479 is a prime.

It is a super-2 number, since 2×655304481² = 858847925637358722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655304401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134616 + ... + 139398.

Almost surely, 2^655304481 is an apocalyptic number.

It is an amenable number.

655304481 is a deficient number, since it is larger than the sum of its proper divisors (365141855).

655304481 is a wasteful number, since it uses less digits than its factorization.

655304481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973 (or 5970 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 655304481 is about 25598.9156215649. The cubic root of 655304481 is about 868.5891083378.

The spelling of 655304481 in words is "six hundred fifty-five million, three hundred four thousand, four hundred eighty-one".