25620271 has 2 divisors, whose sum is σ = 25620272. Its totient is φ = 25620270.

The previous prime is 25620263. The next prime is 25620277. The reversal of 25620271 is 17202652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25620271 - 2³ = 25620263 is a prime.

It is a super-2 number, since 2×25620271² = 1312796572226882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25620277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12810135 + 12810136.

It is an arithmetic number, because the mean of its divisors is an integer number (12810136).

Almost surely, 2^25620271 is an apocalyptic number.

25620271 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620271 is an equidigital number, since it uses as much as digits as its factorization.

25620271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 25620271 is about 5061.6470639506. The cubic root of 25620271 is about 294.8002899954.

The spelling of 25620271 in words is "twenty-five million, six hundred twenty thousand, two hundred seventy-one".