80988553 has 4 divisors (see below), whose sum is σ = 81006660. Its totient is φ = 80970448.

The previous prime is 80988547. The next prime is 80988559. The reversal of 80988553 is 35588908.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (80988547) and next prime (80988559).

It can be written as a sum of positive squares in 2 ways, for example, as 8602489 + 72386064 = 2933^2 + 8508^2 .

It is a cyclic number.

It is not a de Polignac number, because 80988553 - 2⁵ = 80988521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80988559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3051 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (20251665).

Almost surely, 2^80988553 is an apocalyptic number.

It is an amenable number.

80988553 is a deficient number, since it is larger than the sum of its proper divisors (18107).

80988553 is a wasteful number, since it uses less digits than its factorization.

80988553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18106.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 80988553 is about 8999.3640330859. The cubic root of 80988553 is about 432.6544881186.

The spelling of 80988553 in words is "eighty million, nine hundred eighty-eight thousand, five hundred fifty-three".