80982725 has 6 divisors (see below), whose sum is σ = 100418610. Its totient is φ = 64786160.

The previous prime is 80982721. The next prime is 80982767. The reversal of 80982725 is 52728908.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2163841 + 78818884 = 1471^2 + 8878^2 .

It is not a de Polignac number, because 80982725 - 2² = 80982721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80982721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1619630 + ... + 1619679.

It is an arithmetic number, because the mean of its divisors is an integer number (16736435).

Almost surely, 2^80982725 is an apocalyptic number.

It is an amenable number.

80982725 is a deficient number, since it is larger than the sum of its proper divisors (19435885).

80982725 is a wasteful number, since it uses less digits than its factorization.

80982725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239319 (or 3239314 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 80982725 is about 8999.0402266019. The cubic root of 80982725 is about 432.6441098172.

The spelling of 80982725 in words is "eighty million, nine hundred eighty-two thousand, seven hundred twenty-five".