80992502 has 4 divisors (see below), whose sum is σ = 121488756. Its totient is φ = 40496250.

The previous prime is 80992501. The next prime is 80992511. The reversal of 80992502 is 20529908.

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 (80992501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20248124 + ... + 20248127.

It is an arithmetic number, because the mean of its divisors is an integer number (30372189).

Almost surely, 2^80992502 is an apocalyptic number.

80992502 is a deficient number, since it is larger than the sum of its proper divisors (40496254).

80992502 is a wasteful number, since it uses less digits than its factorization.

80992502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40496253.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 80992502 is about 8999.5834348041. The cubic root of 80992502 is about 432.6615200787.

It can be divided in two parts, 8099 and 2502, that added together give a palindrome (10601).

The spelling of 80992502 in words is "eighty million, nine hundred ninety-two thousand, five hundred two".