8725571 has 2 divisors, whose sum is σ = 8725572. Its totient is φ = 8725570.

The previous prime is 8725567. The next prime is 8725609. The reversal of 8725571 is 1755278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8725571 - 2² = 8725567 is a prime.

It is a super-2 number, since 2×8725571² = 152271178552082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8725511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4362785 + 4362786.

It is an arithmetic number, because the mean of its divisors is an integer number (4362786).

Almost surely, 2^8725571 is an apocalyptic number.

8725571 is a deficient number, since it is larger than the sum of its proper divisors (1).

8725571 is an equidigital number, since it uses as much as digits as its factorization.

8725571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19600, while the sum is 35.

The square root of 8725571 is about 2953.9077507600. The cubic root of 8725571 is about 205.8723169546.

The spelling of 8725571 in words is "eight million, seven hundred twenty-five thousand, five hundred seventy-one".