25045019 has 2 divisors, whose sum is σ = 25045020. Its totient is φ = 25045018.

The previous prime is 25044977. The next prime is 25045057. The reversal of 25045019 is 91054052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25045019 - 2²⁰ = 23996443 is a prime.

It is a super-2 number, since 2×25045019² = 1254505953420722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25045079) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12522509 + 12522510.

It is an arithmetic number, because the mean of its divisors is an integer number (12522510).

Almost surely, 2^25045019 is an apocalyptic number.

25045019 is a deficient number, since it is larger than the sum of its proper divisors (1).

25045019 is an equidigital number, since it uses as much as digits as its factorization.

25045019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 25045019 is about 5004.4998751124. The cubic root of 25045019 is about 292.5771837124.

The spelling of 25045019 in words is "twenty-five million, forty-five thousand, nineteen".