80471925 has 18 divisors (see below), whose sum is σ = 144134562. Its totient is φ = 42918240.

The previous prime is 80471887. The next prime is 80471953. The reversal of 80471925 is 52917408.

It can be written as a sum of positive squares in 3 ways, for example, as 28068804 + 52403121 = 5298^2 + 7239^2 .

It is not a de Polignac number, because 80471925 - 2¹¹ = 80469877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80471925.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 178602 + ... + 179051.

Almost surely, 2^80471925 is an apocalyptic number.

It is an amenable number.

80471925 is a deficient number, since it is larger than the sum of its proper divisors (63662637).

80471925 is a wasteful number, since it uses less digits than its factorization.

80471925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357669 (or 357661 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 80471925 is about 8970.6145274446. The cubic root of 80471925 is about 431.7325537256.

The spelling of 80471925 in words is "eighty million, four hundred seventy-one thousand, nine hundred twenty-five".