80551601 has 4 divisors (see below), whose sum is σ = 86747892. Its totient is φ = 74355312.

The previous prime is 80551591. The next prime is 80551649. The reversal of 80551601 is 10615508.

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 54745201 + 25806400 = 7399^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 80551601 - 2¹⁸ = 80289457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80551501) 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, 3098126 + ... + 3098151.

It is an arithmetic number, because the mean of its divisors is an integer number (21686973).

Almost surely, 2^80551601 is an apocalyptic number.

It is an amenable number.

80551601 is a deficient number, since it is larger than the sum of its proper divisors (6196291).

80551601 is a wasteful number, since it uses less digits than its factorization.

80551601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196290.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 80551601 is about 8975.0543730943. The cubic root of 80551601 is about 431.8749941952.

The spelling of 80551601 in words is "eighty million, five hundred fifty-one thousand, six hundred one".