25555298042 has 8 divisors (see below), whose sum is σ = 40587826356. Its totient is φ = 12026022592.

The previous prime is 25555298039. The next prime is 25555298063. The reversal of 25555298042 is 24089255552.

It can be written as a sum of positive squares in 2 ways, for example, as 25554899881 + 398161 = 159859^2 + 631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 375813173 + ... + 375813240.

Almost surely, 2^25555298042 is an apocalyptic number.

25555298042 is a deficient number, since it is larger than the sum of its proper divisors (15032528314).

25555298042 is a wasteful number, since it uses less digits than its factorization.

25555298042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751626432.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 25555298042 in words is "twenty-five billion, five hundred fifty-five million, two hundred ninety-eight thousand, forty-two".