485372581 has 4 divisors (see below), whose sum is σ = 485585100. Its totient is φ = 485160064.

The previous prime is 485372557. The next prime is 485372617. The reversal of 485372581 is 185273584.

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 333245025 + 152127556 = 18255^2 + 12334^2 .

It is a cyclic number.

It is not a de Polignac number, because 485372581 - 2¹³ = 485364389 is a prime.

It is a super-2 number, since 2×485372581² = 471173084773203122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485372551) 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, 102796 + ... + 107413.

It is an arithmetic number, because the mean of its divisors is an integer number (121396275).

Almost surely, 2^485372581 is an apocalyptic number.

It is an amenable number.

485372581 is a deficient number, since it is larger than the sum of its proper divisors (212519).

485372581 is a wasteful number, since it uses less digits than its factorization.

485372581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212518.

The product of its digits is 268800, while the sum is 43.

The square root of 485372581 is about 22031.1729374539. The cubic root of 485372581 is about 785.8839386241.

The spelling of 485372581 in words is "four hundred eighty-five million, three hundred seventy-two thousand, five hundred eighty-one".