25953919 has 2 divisors, whose sum is σ = 25953920. Its totient is φ = 25953918.

The previous prime is 25953911. The next prime is 25953929. The reversal of 25953919 is 91935952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25953919 - 2³ = 25953911 is a prime.

It is a super-2 number, since 2×25953919² = 1347211822917122, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25953911) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12976959 + 12976960.

It is an arithmetic number, because the mean of its divisors is an integer number (12976960).

Almost surely, 2^25953919 is an apocalyptic number.

25953919 is a deficient number, since it is larger than the sum of its proper divisors (1).

25953919 is an equidigital number, since it uses as much as digits as its factorization.

25953919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 43.

The square root of 25953919 is about 5094.4988958680. The cubic root of 25953919 is about 296.0744843903.

The spelling of 25953919 in words is "twenty-five million, nine hundred fifty-three thousand, nine hundred nineteen".