80949925 has 12 divisors (see below), whose sum is σ = 114717856. Its totient is φ = 55508400.

The previous prime is 80949917. The next prime is 80949929. The reversal of 80949925 is 52994908.

It is not a de Polignac number, because 80949925 - 2³ = 80949917 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 (80949929) 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 11 ways as a sum of consecutive naturals, for example, 231111 + ... + 231460.

Almost surely, 2^80949925 is an apocalyptic number.

It is an amenable number.

80949925 is a deficient number, since it is larger than the sum of its proper divisors (33767931).

80949925 is a wasteful number, since it uses less digits than its factorization.

80949925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462588 (or 462583 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 80949925 is about 8997.2176254662. The cubic root of 80949925 is about 432.5856914196.

The spelling of 80949925 in words is "eighty million, nine hundred forty-nine thousand, nine hundred twenty-five".