25491119 has 2 divisors, whose sum is σ = 25491120. Its totient is φ = 25491118.

The previous prime is 25491101. The next prime is 25491133. The reversal of 25491119 is 91119452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25491119 - 2²⁰ = 24442543 is a prime.

It is a super-2 number, since 2×25491119² = 1299594295744322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25491139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12745559 + 12745560.

It is an arithmetic number, because the mean of its divisors is an integer number (12745560).

Almost surely, 2^25491119 is an apocalyptic number.

25491119 is a deficient number, since it is larger than the sum of its proper divisors (1).

25491119 is an equidigital number, since it uses as much as digits as its factorization.

25491119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 32.

The square root of 25491119 is about 5048.8730425710. The cubic root of 25491119 is about 294.3040917048.

The spelling of 25491119 in words is "twenty-five million, four hundred ninety-one thousand, one hundred nineteen".