8025557 has 2 divisors, whose sum is σ = 8025558. Its totient is φ = 8025556.

The previous prime is 8025553. The next prime is 8025569. The reversal of 8025557 is 7555208.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6791236 + 1234321 = 2606^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 8025557 - 2² = 8025553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8025553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4012778 + 4012779.

It is an arithmetic number, because the mean of its divisors is an integer number (4012779).

Almost surely, 2^8025557 is an apocalyptic number.

It is an amenable number.

8025557 is a deficient number, since it is larger than the sum of its proper divisors (1).

8025557 is an equidigital number, since it uses as much as digits as its factorization.

8025557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 8025557 is about 2832.9414042652. The cubic root of 8025557 is about 200.2127486099.

The spelling of 8025557 in words is "eight million, twenty-five thousand, five hundred fifty-seven".