25828001 has 2 divisors, whose sum is σ = 25828002. Its totient is φ = 25828000.

The previous prime is 25827983. The next prime is 25828003. The reversal of 25828001 is 10082852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17648401 + 8179600 = 4201^2 + 2860^2 .

It is a cyclic number.

It is not a de Polignac number, because 25828001 - 2⁶ = 25827937 is a prime.

Together with 25828003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25828003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12914000 + 12914001.

It is an arithmetic number, because the mean of its divisors is an integer number (12914001).

Almost surely, 2^25828001 is an apocalyptic number.

It is an amenable number.

25828001 is a deficient number, since it is larger than the sum of its proper divisors (1).

25828001 is an equidigital number, since it uses as much as digits as its factorization.

25828001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 25828001 is about 5082.1256379590. The cubic root of 25828001 is about 295.5948964336.

The spelling of 25828001 in words is "twenty-five million, eight hundred twenty-eight thousand, one".