481550081 has 4 divisors (see below), whose sum is σ = 483340500. Its totient is φ = 479759664.

The previous prime is 481550059. The next prime is 481550093. The reversal of 481550081 is 180055184.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51609856 + 429940225 = 7184^2 + 20735^2 .

It is a cyclic number.

It is not a de Polignac number, because 481550081 - 2¹⁴ = 481533697 is a prime.

It is a super-2 number, since 2×481550081² = 463780961022213122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481550021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894806 + ... + 895343.

It is an arithmetic number, because the mean of its divisors is an integer number (120835125).

Almost surely, 2^481550081 is an apocalyptic number.

It is an amenable number.

481550081 is a deficient number, since it is larger than the sum of its proper divisors (1790419).

481550081 is a wasteful number, since it uses less digits than its factorization.

481550081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790418.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 481550081 is about 21944.2493833806. The cubic root of 481550081 is about 783.8154506482.

The spelling of 481550081 in words is "four hundred eighty-one million, five hundred fifty thousand, eighty-one".