25555005550050 has 48 divisors (see below), whose sum is σ = 63438977234880. Its totient is φ = 6807940891840.

The previous prime is 25555005550043. The next prime is 25555005550117. The reversal of 25555005550050 is 5005550055552.

It is a junction number, because it is equal to n+sod(n) for n = 25555005549984 and 25555005550011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83938230 + ... + 84242129.

It is an arithmetic number, because the mean of its divisors is an integer number (1321645359060).

Almost surely, 2^{25555005550050} is an apocalyptic number.

25555005550050 is an abundant number, since it is smaller than the sum of its proper divisors (37883971684830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25555005550050 is a wasteful number, since it uses less digits than its factorization.

25555005550050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168181387 (or 168181382 counting only the distinct ones).

The product of its (nonzero) digits is 781250, while the sum is 42.

The spelling of 25555005550050 in words is "twenty-five trillion, five hundred fifty-five billion, five million, five hundred fifty thousand, fifty".