25280573 has 2 divisors, whose sum is σ = 25280574. Its totient is φ = 25280572.

The previous prime is 25280561. The next prime is 25280587. The reversal of 25280573 is 37508252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15155449 + 10125124 = 3893^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 25280573 - 2¹⁰ = 25279549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25280533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12640286 + 12640287.

It is an arithmetic number, because the mean of its divisors is an integer number (12640287).

Almost surely, 2^25280573 is an apocalyptic number.

It is an amenable number.

25280573 is a deficient number, since it is larger than the sum of its proper divisors (1).

25280573 is an equidigital number, since it uses as much as digits as its factorization.

25280573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 25280573 is about 5027.9790174582. The cubic root of 25280573 is about 293.4915742565.

The spelling of 25280573 in words is "twenty-five million, two hundred eighty thousand, five hundred seventy-three".