80264521 has 4 divisors (see below), whose sum is σ = 80507344. Its totient is φ = 80021700.

The previous prime is 80264479. The next prime is 80264537. The reversal of 80264521 is 12546208.

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 80264521 - 2¹¹ = 80262473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80264521.

It is not an unprimeable number, because it can be changed into a prime (80264551) 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, 120915 + ... + 121576.

It is an arithmetic number, because the mean of its divisors is an integer number (20126836).

Almost surely, 2^80264521 is an apocalyptic number.

It is an amenable number.

80264521 is a deficient number, since it is larger than the sum of its proper divisors (242823).

80264521 is a wasteful number, since it uses less digits than its factorization.

80264521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242822.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 80264521 is about 8959.0468801095. The cubic root of 80264521 is about 431.3613265482.

The spelling of 80264521 in words is "eighty million, two hundred sixty-four thousand, five hundred twenty-one".