2578201 has 2 divisors, whose sum is σ = 2578202. Its totient is φ = 2578200.

The previous prime is 2578157. The next prime is 2578207. The reversal of 2578201 is 1028752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 952576 = 1275^2 + 976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2578201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2578207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289100 + 1289101.

It is an arithmetic number, because the mean of its divisors is an integer number (1289101).

2^2578201 is an apocalyptic number.

It is an amenable number.

2578201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578201 is an equidigital number, since it uses as much as digits as its factorization.

2578201 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 25.

The square root of 2578201 is about 1605.6777385266. The cubic root of 2578201 is about 137.1215111763.

The spelling of 2578201 in words is "two million, five hundred seventy-eight thousand, two hundred one".