806542025 has 12 divisors (see below), whose sum is σ = 1005144000. Its totient is φ = 641987280.

The previous prime is 806542019. The next prime is 806542027. The reversal of 806542025 is 520245608.

It is not a de Polignac number, because 806542025 - 2⁶ = 806541961 is a prime.

It is a super-2 number, since 2×806542025² = 1301020076182201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 806541982 and 806542000.

It is not an unprimeable number, because it can be changed into a prime (806542027) 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, 76085 + ... + 86034.

It is an arithmetic number, because the mean of its divisors is an integer number (83762000).

Almost surely, 2^806542025 is an apocalyptic number.

It is an amenable number.

806542025 is a deficient number, since it is larger than the sum of its proper divisors (198601975).

806542025 is a wasteful number, since it uses less digits than its factorization.

806542025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162328 (or 162323 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 806542025 is about 28399.6835369692. The cubic root of 806542025 is about 930.8413494624.

The spelling of 806542025 in words is "eight hundred six million, five hundred forty-two thousand, twenty-five".