25505255050 has 48 divisors (see below), whose sum is σ = 51768320544. Its totient is φ = 9271800000.

The previous prime is 25505255033. The next prime is 25505255077. The reversal of 25505255050 is 5055250552.

It is a junction number, because it is equal to n+sod(n) for n = 25505254997 and 25505255015.

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, 2801005 + ... + 2810095.

It is an arithmetic number, because the mean of its divisors is an integer number (1078506678).

Almost surely, 2^25505255050 is an apocalyptic number.

25505255050 is an abundant number, since it is smaller than the sum of its proper divisors (26263065494).

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

25505255050 is a wasteful number, since it uses less digits than its factorization.

25505255050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14215 (or 14210 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 25505255050 in words is "twenty-five billion, five hundred five million, two hundred fifty-five thousand, fifty".