25453802042 has 16 divisors (see below), whose sum is σ = 38836173600. Its totient is φ = 12510224400.

The previous prime is 25453802039. The next prime is 25453802069. The reversal of 25453802042 is 24020835452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25453801993 and 25453802011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425192 + ... + 481347.

It is an arithmetic number, because the mean of its divisors is an integer number (2427260850).

Almost surely, 2^25453802042 is an apocalyptic number.

25453802042 is a deficient number, since it is larger than the sum of its proper divisors (13382371558).

25453802042 is a wasteful number, since it uses less digits than its factorization.

25453802042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906781.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 25453802042 in words is "twenty-five billion, four hundred fifty-three million, eight hundred two thousand, forty-two".