25620097 has 2 divisors, whose sum is σ = 25620098. Its totient is φ = 25620096.

The previous prime is 25620059. The next prime is 25620143. The reversal of 25620097 is 79002652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 309136 = 5031^2 + 556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25620097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25620017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12810048 + 12810049.

It is an arithmetic number, because the mean of its divisors is an integer number (12810049).

Almost surely, 2^25620097 is an apocalyptic number.

It is an amenable number.

25620097 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620097 is an equidigital number, since it uses as much as digits as its factorization.

25620097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 25620097 is about 5061.6298758404. The cubic root of 25620097 is about 294.7996226154.

The spelling of 25620097 in words is "twenty-five million, six hundred twenty thousand, ninety-seven".