80992563 has 16 divisors (see below), whose sum is σ = 111972000. Its totient is φ = 52012800.

The previous prime is 80992547. The next prime is 80992577. The reversal of 80992563 is 36529908.

It is not a de Polignac number, because 80992563 - 2⁴ = 80992547 is a prime.

It is a super-2 number, since 2×80992563² = 13119590522617938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80992543) 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, 51513 + ... + 53061.

It is an arithmetic number, because the mean of its divisors is an integer number (6998250).

Almost surely, 2^80992563 is an apocalyptic number.

80992563 is a deficient number, since it is larger than the sum of its proper divisors (30979437).

80992563 is a wasteful number, since it uses less digits than its factorization.

80992563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 80992563 is about 8999.5868238492. The cubic root of 80992563 is about 432.6616286992.

The spelling of 80992563 in words is "eighty million, nine hundred ninety-two thousand, five hundred sixty-three".