25554040506850 has 24 divisors (see below), whose sum is σ = 47530824032340. Its totient is φ = 10221549817920.

The previous prime is 25554040506833. The next prime is 25554040506877. The reversal of 25554040506850 is 5860504045552.

It can be written as a sum of positive squares in 6 ways, for example, as 8379340194681 + 17174700312169 = 2894709^2 + 4144237^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25554040506794 and 25554040506803.

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 11 ways as a sum of consecutive naturals, for example, 6514764 + ... + 9672136.

Almost surely, 2^{25554040506850} is an apocalyptic number.

25554040506850 is a deficient number, since it is larger than the sum of its proper divisors (21976783525490).

25554040506850 is a wasteful number, since it uses less digits than its factorization.

25554040506850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319254 (or 3319249 counting only the distinct ones).

The product of its (nonzero) digits is 4800000, while the sum is 49.

The spelling of 25554040506850 in words is "twenty-five trillion, five hundred fifty-four billion, forty million, five hundred six thousand, eight hundred fifty".