481661555 has 8 divisors (see below), whose sum is σ = 578658192. Its totient is φ = 384886368.

The previous prime is 481661513. The next prime is 481661569. The reversal of 481661555 is 555166184.

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

It is a cyclic number.

It is not a de Polignac number, because 481661555 - 2¹⁶ = 481596019 is a prime.

It is a super-3 number, since 3×481661555³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50537 + ... + 59306.

It is an arithmetic number, because the mean of its divisors is an integer number (72332274).

Almost surely, 2^481661555 is an apocalyptic number.

481661555 is a deficient number, since it is larger than the sum of its proper divisors (96996637).

481661555 is a wasteful number, since it uses less digits than its factorization.

481661555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110725.

The product of its digits is 144000, while the sum is 41.

The square root of 481661555 is about 21946.7891729064. The cubic root of 481661555 is about 783.8759277793.

The spelling of 481661555 in words is "four hundred eighty-one million, six hundred sixty-one thousand, five hundred fifty-five".