80957025 has 36 divisors (see below), whose sum is σ = 146377660. Its totient is φ = 42768000.

The previous prime is 80957021. The next prime is 80957029. The reversal of 80957025 is 52075908.

80957025 is a `hidden beast` number, since 80 + 9 + 570 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (80957021) and next prime (80957029).

It can be written as a sum of positive squares in 6 ways, for example, as 3111696 + 77845329 = 1764^2 + 8823^2 .

It is not a de Polignac number, because 80957025 - 2² = 80957021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80957021) 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 35 ways as a sum of consecutive naturals, for example, 22875 + ... + 26175.

Almost surely, 2^80957025 is an apocalyptic number.

It is an amenable number.

80957025 is a deficient number, since it is larger than the sum of its proper divisors (65420635).

80957025 is a wasteful number, since it uses less digits than its factorization.

80957025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 80957025 is about 8997.6121832406. The cubic root of 80957025 is about 432.5983382034.

The spelling of 80957025 in words is "eighty million, nine hundred fifty-seven thousand, twenty-five".