80853633 has 24 divisors (see below), whose sum is σ = 138419008. Its totient is φ = 46201104.

The previous prime is 80853629. The next prime is 80853667. The reversal of 80853633 is 33635808.

It is not a de Polignac number, because 80853633 - 2² = 80853629 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80853623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22066 + ... + 25467.

Almost surely, 2^80853633 is an apocalyptic number.

It is an amenable number.

80853633 is a deficient number, since it is larger than the sum of its proper divisors (57565375).

80853633 is an equidigital number, since it uses as much as digits as its factorization.

80853633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47555 (or 47543 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 80853633 is about 8991.8648232722. The cubic root of 80853633 is about 432.4140994603.

The spelling of 80853633 in words is "eighty million, eight hundred fifty-three thousand, six hundred thirty-three".