80825537 has 8 divisors (see below), whose sum is σ = 87179904. Its totient is φ = 74490768.

The previous prime is 80825533. The next prime is 80825539. The reversal of 80825537 is 73552808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80825537 - 2² = 80825533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80825537.

It is not an unprimeable number, because it can be changed into a prime (80825533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (10897488).

Almost surely, 2^80825537 is an apocalyptic number.

It is an amenable number.

80825537 is a deficient number, since it is larger than the sum of its proper divisors (6354367).

80825537 is a wasteful number, since it uses less digits than its factorization.

80825537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9799.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 80825537 is about 8990.3023864606. The cubic root of 80825537 is about 432.3640068275.

The spelling of 80825537 in words is "eighty million, eight hundred twenty-five thousand, five hundred thirty-seven".