25225453943 has 4 divisors (see below), whose sum is σ = 25225846800. Its totient is φ = 25225061088.

The previous prime is 25225453919. The next prime is 25225453991. The reversal of 25225453943 is 34935452252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25225453943 - 2⁶ = 25225453879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25225453894 and 25225453903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225453993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75155 + ... + 236852.

It is an arithmetic number, because the mean of its divisors is an integer number (6306461700).

Almost surely, 2^25225453943 is an apocalyptic number.

25225453943 is a deficient number, since it is larger than the sum of its proper divisors (392857).

25225453943 is an equidigital number, since it uses as much as digits as its factorization.

25225453943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392856.

The product of its digits is 1296000, while the sum is 44.

The spelling of 25225453943 in words is "twenty-five billion, two hundred twenty-five million, four hundred fifty-three thousand, nine hundred forty-three".