80498561 has 16 divisors (see below), whose sum is σ = 95473728. Its totient is φ = 66907200.

The previous prime is 80498543. The next prime is 80498647. The reversal of 80498561 is 16589408.

It is a cyclic number.

It is not a de Polignac number, because 80498561 - 2¹⁰ = 80497537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80498261) 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, 12671 + ... + 17931.

It is an arithmetic number, because the mean of its divisors is an integer number (5967108).

Almost surely, 2^80498561 is an apocalyptic number.

It is an amenable number.

80498561 is a deficient number, since it is larger than the sum of its proper divisors (14975167).

80498561 is a wasteful number, since it uses less digits than its factorization.

80498561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 80498561 is about 8972.0990297700. The cubic root of 80498561 is about 431.7801825923.

The spelling of 80498561 in words is "eighty million, four hundred ninety-eight thousand, five hundred sixty-one".