25005552550528 has 64 divisors (see below), whose sum is σ = 54677855754720. Its totient is φ = 11296429102080.

The previous prime is 25005552550519. The next prime is 25005552550529. The reversal of 25005552550528 is 82505525550052.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25005552550529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54247875 + ... + 54706882.

Almost surely, 2^{25005552550528} is an apocalyptic number.

It is an amenable number.

25005552550528 is an abundant number, since it is smaller than the sum of its proper divisors (29672303204192).

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

25005552550528 is a wasteful number, since it uses less digits than its factorization.

25005552550528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108954945 (or 108954933 counting only the distinct ones).

The product of its (nonzero) digits is 5000000, while the sum is 49.

The spelling of 25005552550528 in words is "twenty-five trillion, five billion, five hundred fifty-two million, five hundred fifty thousand, five hundred twenty-eight".