80527725 has 72 divisors (see below), whose sum is σ = 157121640. Its totient is φ = 39260160.

The previous prime is 80527717. The next prime is 80527771. The reversal of 80527725 is 52772508.

It can be written as a sum of positive squares in 12 ways, for example, as 9108324 + 71419401 = 3018^2 + 8451^2 .

It is not a de Polignac number, because 80527725 - 2³ = 80527717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80527725.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 141241 + ... + 141809.

It is an arithmetic number, because the mean of its divisors is an integer number (2182245).

Almost surely, 2^80527725 is an apocalyptic number.

80527725 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80527725 is a deficient number, since it is larger than the sum of its proper divisors (76593915).

80527725 is a wasteful number, since it uses less digits than its factorization.

80527725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 80527725 is about 8973.7241432975. The cubic root of 80527725 is about 431.8323198259.

The spelling of 80527725 in words is "eighty million, five hundred twenty-seven thousand, seven hundred twenty-five".