25435505419 has 2 divisors, whose sum is σ = 25435505420. Its totient is φ = 25435505418.

The previous prime is 25435505327. The next prime is 25435505437. The reversal of 25435505419 is 91450553452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25435505419 - 2²⁷ = 25301287691 is a prime.

It is a super-2 number, since 2×25435505419² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25435505819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12717752709 + 12717752710.

It is an arithmetic number, because the mean of its divisors is an integer number (12717752710).

Almost surely, 2^25435505419 is an apocalyptic number.

25435505419 is a deficient number, since it is larger than the sum of its proper divisors (1).

25435505419 is an equidigital number, since it uses as much as digits as its factorization.

25435505419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 25435505419 in words is "twenty-five billion, four hundred thirty-five million, five hundred five thousand, four hundred nineteen".