25550305250250 has 64 divisors (see below), whose sum is σ = 69571158463872. Its totient is φ = 6194013392000.

The previous prime is 25550305250227. The next prime is 25550305250251. The reversal of 25550305250250 is 5205250305552.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25550305250199 and 25550305250208.

It is not an unprimeable number, because it can be changed into a prime (25550305250251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1548495099 + ... + 1548511598.

It is an arithmetic number, because the mean of its divisors is an integer number (1087049350998).

Almost surely, 2^{25550305250250} is an apocalyptic number.

25550305250250 is an abundant number, since it is smaller than the sum of its proper divisors (44020853213622).

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

25550305250250 is a wasteful number, since it uses less digits than its factorization.

25550305250250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097006728 (or 3097006718 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 39.

The spelling of 25550305250250 in words is "twenty-five trillion, five hundred fifty billion, three hundred five million, two hundred fifty thousand, two hundred fifty".