80452581 has 16 divisors (see below), whose sum is σ = 117410880. Its totient is φ = 48597120.

The previous prime is 80452543. The next prime is 80452601. The reversal of 80452581 is 18525408.

It is not a de Polignac number, because 80452581 - 2⁷ = 80452453 is a prime.

It is a super-2 number, since 2×80452581² = 12945235579123122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80452501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6435 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (7338180).

Almost surely, 2^80452581 is an apocalyptic number.

It is an amenable number.

80452581 is a deficient number, since it is larger than the sum of its proper divisors (36958299).

80452581 is a wasteful number, since it uses less digits than its factorization.

80452581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 80452581 is about 8969.5362756388. The cubic root of 80452581 is about 431.6979573792.

Adding to 80452581 its reverse (18525408), we get a palindrome (98977989).

The spelling of 80452581 in words is "eighty million, four hundred fifty-two thousand, five hundred eighty-one".