25242071 has 2 divisors, whose sum is σ = 25242072. Its totient is φ = 25242070.

The previous prime is 25242047. The next prime is 25242073. The reversal of 25242071 is 17024252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25242071 is a prime.

Together with 25242073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25242073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12621035 + 12621036.

It is an arithmetic number, because the mean of its divisors is an integer number (12621036).

Almost surely, 2^25242071 is an apocalyptic number.

25242071 is a deficient number, since it is larger than the sum of its proper divisors (1).

25242071 is an equidigital number, since it uses as much as digits as its factorization.

25242071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 25242071 is about 5024.1487836249. The cubic root of 25242071 is about 293.3425038742.

The spelling of 25242071 in words is "twenty-five million, two hundred forty-two thousand, seventy-one".