25928219 has 2 divisors, whose sum is σ = 25928220. Its totient is φ = 25928218.

The previous prime is 25928159. The next prime is 25928249. The reversal of 25928219 is 91282952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25928219 - 2²⁴ = 9151003 is a prime.

It is a super-2 number, since 2×25928219² = 1344545081023922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25928249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12964109 + 12964110.

It is an arithmetic number, because the mean of its divisors is an integer number (12964110).

Almost surely, 2^25928219 is an apocalyptic number.

25928219 is a deficient number, since it is larger than the sum of its proper divisors (1).

25928219 is an equidigital number, since it uses as much as digits as its factorization.

25928219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 25928219 is about 5091.9759425983. The cubic root of 25928219 is about 295.9767261650.

The spelling of 25928219 in words is "twenty-five million, nine hundred twenty-eight thousand, two hundred nineteen".