80745553 has 8 divisors (see below), whose sum is σ = 94022208. Its totient is φ = 67904304.

The previous prime is 80745551. The next prime is 80745557. The reversal of 80745553 is 35554708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80745553 - 2¹ = 80745551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80745551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108451 + ... + 109192.

It is an arithmetic number, because the mean of its divisors is an integer number (11752776).

Almost surely, 2^80745553 is an apocalyptic number.

It is an amenable number.

80745553 is a deficient number, since it is larger than the sum of its proper divisors (13276655).

80745553 is a wasteful number, since it uses less digits than its factorization.

80745553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217703.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 80745553 is about 8985.8529367000. The cubic root of 80745553 is about 432.2213389791.

It can be divided in two parts, 807 and 45553, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 80745553 in words is "eighty million, seven hundred forty-five thousand, five hundred fifty-three".