25345571 has 2 divisors, whose sum is σ = 25345572. Its totient is φ = 25345570.

The previous prime is 25345559. The next prime is 25345583. The reversal of 25345571 is 17554352.

It is a balanced prime because it is at equal distance from previous prime (25345559) and next prime (25345583).

It is a cyclic number.

It is not a de Polignac number, because 25345571 - 2¹⁸ = 25083427 is a prime.

It is not a weakly prime, because it can be changed into another prime (25345591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12672785 + 12672786.

It is an arithmetic number, because the mean of its divisors is an integer number (12672786).

Almost surely, 2^25345571 is an apocalyptic number.

25345571 is a deficient number, since it is larger than the sum of its proper divisors (1).

25345571 is an equidigital number, since it uses as much as digits as its factorization.

25345571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 32.

The square root of 25345571 is about 5034.4384989788. The cubic root of 25345571 is about 293.7428876503.

The spelling of 25345571 in words is "twenty-five million, three hundred forty-five thousand, five hundred seventy-one".