481528581 has 8 divisors (see below), whose sum is σ = 646290624. Its totient is φ = 318892800.

The previous prime is 481528573. The next prime is 481528591. The reversal of 481528581 is 185825184.

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

It is not a de Polignac number, because 481528581 - 2³ = 481528573 is a prime.

It is a super-2 number, since 2×481528581² = 463739548639747122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481528511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531036 + ... + 531941.

It is an arithmetic number, because the mean of its divisors is an integer number (80786328).

Almost surely, 2^481528581 is an apocalyptic number.

It is an amenable number.

481528581 is a deficient number, since it is larger than the sum of its proper divisors (164762043).

481528581 is a wasteful number, since it uses less digits than its factorization.

481528581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063131.

The product of its digits is 102400, while the sum is 42.

The square root of 481528581 is about 21943.7595001404. The cubic root of 481528581 is about 783.8037853450.

The spelling of 481528581 in words is "four hundred eighty-one million, five hundred twenty-eight thousand, five hundred eighty-one".