25005305555000 has 80 divisors (see below), whose sum is σ = 58719687653880. Its totient is φ = 9979543184000.

The previous prime is 25005305554969. The next prime is 25005305555003. The reversal of 25005305555000 is 55550350052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25005305555003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3429539 + ... + 7859538.

Almost surely, 2^{25005305555000} is an apocalyptic number.

25005305555000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25005305555000 is an abundant number, since it is smaller than the sum of its proper divisors (33714382098880).

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

25005305555000 is a wasteful number, since it uses less digits than its factorization.

25005305555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289546 (or 11289527 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 25005305555000 in words is "twenty-five trillion, five billion, three hundred five million, five hundred fifty-five thousand".