481553985 has 48 divisors (see below), whose sum is σ = 896773248. Its totient is φ = 219732480.

The previous prime is 481553981. The next prime is 481553999. The reversal of 481553985 is 589355184.

It is a happy number.

It is not a de Polignac number, because 481553985 - 2² = 481553981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (481553981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23052 + ... + 38658.

It is an arithmetic number, because the mean of its divisors is an integer number (18682776).

Almost surely, 2^481553985 is an apocalyptic number.

It is an amenable number.

481553985 is a deficient number, since it is larger than the sum of its proper divisors (415219263).

481553985 is a wasteful number, since it uses less digits than its factorization.

481553985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15654 (or 15643 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The square root of 481553985 is about 21944.3383358897. The cubic root of 481553985 is about 783.8175688129.

The spelling of 481553985 in words is "four hundred eighty-one million, five hundred fifty-three thousand, nine hundred eighty-five".