25263019 has 2 divisors, whose sum is σ = 25263020. Its totient is φ = 25263018.

The previous prime is 25263013. The next prime is 25263023. The reversal of 25263019 is 91036252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25263019 - 2⁵ = 25262987 is a prime.

It is a super-2 number, since 2×25263019² = 1276440257988722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25263013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631509 + 12631510.

It is an arithmetic number, because the mean of its divisors is an integer number (12631510).

Almost surely, 2^25263019 is an apocalyptic number.

25263019 is a deficient number, since it is larger than the sum of its proper divisors (1).

25263019 is an equidigital number, since it uses as much as digits as its factorization.

25263019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 25263019 is about 5026.2330825381. The cubic root of 25263019 is about 293.4236282227.

The spelling of 25263019 in words is "twenty-five million, two hundred sixty-three thousand, nineteen".