2025641 has 2 divisors, whose sum is σ = 2025642. Its totient is φ = 2025640.

The previous prime is 2025637. The next prime is 2025643. The reversal of 2025641 is 1465202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019241 + 6400 = 1421^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025641 - 2² = 2025637 is a prime.

Together with 2025643, it forms a pair of twin primes.

It is a Chen prime.

2025641 is a modest number, since divided by 25641 gives 2 as remainder.

It is not a weakly prime, because it can be changed into another prime (2025643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012820 + 1012821.

It is an arithmetic number, because the mean of its divisors is an integer number (1012821).

2^2025641 is an apocalyptic number.

It is an amenable number.

2025641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025641 is an equidigital number, since it uses as much as digits as its factorization.

2025641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2025641 is about 1423.2501536975. The cubic root of 2025641 is about 126.5282475311.

The spelling of 2025641 in words is "two million, twenty-five thousand, six hundred forty-one".