80856502 has 4 divisors (see below), whose sum is σ = 121284756. Its totient is φ = 40428250.

The previous prime is 80856499. The next prime is 80856509. The reversal of 80856502 is 20565808.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80856509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20214124 + ... + 20214127.

It is an arithmetic number, because the mean of its divisors is an integer number (30321189).

Almost surely, 2^80856502 is an apocalyptic number.

80856502 is a deficient number, since it is larger than the sum of its proper divisors (40428254).

80856502 is a wasteful number, since it uses less digits than its factorization.

80856502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40428253.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 80856502 is about 8992.0243549492. The cubic root of 80856502 is about 432.4192139754.

The spelling of 80856502 in words is "eighty million, eight hundred fifty-six thousand, five hundred two".