2580401 has 2 divisors, whose sum is σ = 2580402. Its totient is φ = 2580400.

The previous prime is 2580341. The next prime is 2580407. The reversal of 2580401 is 1040852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 564001 = 1420^2 + 751^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580401 - 2⁶ = 2580337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2580407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290200 + 1290201.

It is an arithmetic number, because the mean of its divisors is an integer number (1290201).

2^2580401 is an apocalyptic number.

It is an amenable number.

2580401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580401 is an equidigital number, since it uses as much as digits as its factorization.

2580401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2580401 is about 1606.3626614186. The cubic root of 2580401 is about 137.1605023902.

The spelling of 2580401 in words is "two million, five hundred eighty thousand, four hundred one".