80507653 has 4 divisors (see below), whose sum is σ = 82379968. Its totient is φ = 78635340.

The previous prime is 80507633. The next prime is 80507701. The reversal of 80507653 is 35670508.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-80507653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80507633) 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, 936093 + ... + 936178.

It is an arithmetic number, because the mean of its divisors is an integer number (20594992).

Almost surely, 2^80507653 is an apocalyptic number.

It is an amenable number.

80507653 is a deficient number, since it is larger than the sum of its proper divisors (1872315).

80507653 is a wasteful number, since it uses less digits than its factorization.

80507653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872314.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 80507653 is about 8972.6056973434. The cubic root of 80507653 is about 431.7964379455.

The spelling of 80507653 in words is "eighty million, five hundred seven thousand, six hundred fifty-three".