25867573 has 2 divisors, whose sum is σ = 25867574. Its totient is φ = 25867572.

The previous prime is 25867559. The next prime is 25867577. The reversal of 25867573 is 37576852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18507204 + 7360369 = 4302^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 25867573 - 2¹³ = 25859381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25867577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12933786 + 12933787.

It is an arithmetic number, because the mean of its divisors is an integer number (12933787).

Almost surely, 2^25867573 is an apocalyptic number.

It is an amenable number.

25867573 is a deficient number, since it is larger than the sum of its proper divisors (1).

25867573 is an equidigital number, since it uses as much as digits as its factorization.

25867573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The square root of 25867573 is about 5086.0174006781. The cubic root of 25867573 is about 295.7457832222.

The spelling of 25867573 in words is "twenty-five million, eight hundred sixty-seven thousand, five hundred seventy-three".