809496125 has 8 divisors (see below), whose sum is σ = 1010251320. Its totient is φ = 647596800.

The previous prime is 809496073. The next prime is 809496133. The reversal of 809496125 is 521694908.

It can be written as a sum of positive squares in 4 ways, for example, as 4468996 + 805027129 = 2114^2 + 28373^2 .

It is not a de Polignac number, because 809496125 - 2¹² = 809492029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3237860 + ... + 3238109.

It is an arithmetic number, because the mean of its divisors is an integer number (126281415).

Almost surely, 2^809496125 is an apocalyptic number.

It is an amenable number.

809496125 is a deficient number, since it is larger than the sum of its proper divisors (200755195).

809496125 is an equidigital number, since it uses as much as digits as its factorization.

809496125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6475984 (or 6475974 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 809496125 is about 28451.6453830003. The cubic root of 809496125 is about 931.9764207319.

The spelling of 809496125 in words is "eight hundred nine million, four hundred ninety-six thousand, one hundred twenty-five".