25877573 has 2 divisors, whose sum is σ = 25877574. Its totient is φ = 25877572.

The previous prime is 25877567. The next prime is 25877627. The reversal of 25877573 is 37577852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 4 = 5087^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 25877573 - 2¹⁶ = 25812037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25877473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12938786 + 12938787.

It is an arithmetic number, because the mean of its divisors is an integer number (12938787).

Almost surely, 2^25877573 is an apocalyptic number.

It is an amenable number.

25877573 is a deficient number, since it is larger than the sum of its proper divisors (1).

25877573 is an equidigital number, since it uses as much as digits as its factorization.

25877573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411600, while the sum is 44.

The square root of 25877573 is about 5087.0003931590. Note that the first 3 decimals coincide. The cubic root of 25877573 is about 295.7838885470.

The spelling of 25877573 in words is "twenty-five million, eight hundred seventy-seven thousand, five hundred seventy-three".