80887533 has 4 divisors (see below), whose sum is σ = 107850048. Its totient is φ = 53925020.

The previous prime is 80887523. The next prime is 80887537. The reversal of 80887533 is 33578808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80887533 - 2⁵ = 80887501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80887537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13481253 + ... + 13481258.

It is an arithmetic number, because the mean of its divisors is an integer number (26962512).

Almost surely, 2^80887533 is an apocalyptic number.

It is an amenable number.

80887533 is a deficient number, since it is larger than the sum of its proper divisors (26962515).

80887533 is a wasteful number, since it uses less digits than its factorization.

80887533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26962514.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 80887533 is about 8993.7496629604. The cubic root of 80887533 is about 432.4745246558.

The spelling of 80887533 in words is "eighty million, eight hundred eighty-seven thousand, five hundred thirty-three".