481981655 has 8 divisors (see below), whose sum is σ = 580630032. Its totient is φ = 384083968.

The previous prime is 481981649. The next prime is 481981693. The reversal of 481981655 is 556189184.

It is a happy number.

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 481981655 - 2²² = 477787351 is a prime.

It is a Duffinian number.

It is a congruent 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, 186257 + ... + 188826.

It is an arithmetic number, because the mean of its divisors is an integer number (72578754).

Almost surely, 2^481981655 is an apocalyptic number.

481981655 is a deficient number, since it is larger than the sum of its proper divisors (98648377).

481981655 is a wasteful number, since it uses less digits than its factorization.

481981655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375345.

The product of its digits is 345600, while the sum is 47.

The square root of 481981655 is about 21954.0806001982. The cubic root of 481981655 is about 784.0495373175.

The spelling of 481981655 in words is "four hundred eighty-one million, nine hundred eighty-one thousand, six hundred fifty-five".