80987053 has 12 divisors (see below), whose sum is σ = 97459740. Its totient is φ = 67022592.

The previous prime is 80987047. The next prime is 80987057. The reversal of 80987053 is 35078908.

It can be written as a sum of positive squares in 2 ways, for example, as 55160329 + 25826724 = 7427^2 + 5082^2 .

It is not a de Polignac number, because 80987053 - 2⁹ = 80986541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80986997 and 80987015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80987057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27076 + ... + 29917.

It is an arithmetic number, because the mean of its divisors is an integer number (8121645).

Almost surely, 2^80987053 is an apocalyptic number.

It is an amenable number.

80987053 is a deficient number, since it is larger than the sum of its proper divisors (16472687).

80987053 is a wasteful number, since it uses less digits than its factorization.

80987053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57036 (or 57029 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 80987053 is about 8999.2806934777. The cubic root of 80987053 is about 432.6518170180.

It can be divided in two parts, 8098 and 7053, that added together give a palindrome (15151).

The spelling of 80987053 in words is "eighty million, nine hundred eighty-seven thousand, fifty-three".