25452019 has 2 divisors, whose sum is σ = 25452020. Its totient is φ = 25452018.

The previous prime is 25452017. The next prime is 25452029. The reversal of 25452019 is 91025452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25452019 - 2¹ = 25452017 is a prime.

It is a super-2 number, since 2×25452019² = 1295610542352722, which contains 22 as substring.

Together with 25452017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25452013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12726009 + 12726010.

It is an arithmetic number, because the mean of its divisors is an integer number (12726010).

Almost surely, 2^25452019 is an apocalyptic number.

25452019 is a deficient number, since it is larger than the sum of its proper divisors (1).

25452019 is an equidigital number, since it uses as much as digits as its factorization.

25452019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25452019 is about 5044.9994053518. Note that the first 3 decimals coincide. The cubic root of 25452019 is about 294.1535402054.

The spelling of 25452019 in words is "twenty-five million, four hundred fifty-two thousand, nineteen".