25556508577825 has 24 divisors (see below), whose sum is σ = 31720042037376. Its totient is φ = 20425874952000.

The previous prime is 25556508577819. The next prime is 25556508577871. The reversal of 25556508577825 is 52877580565552.

25556508577825 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 25556508577825 - 2⁷ = 25556508577697 is a prime.

It is a Duffinian number.

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, 249010770 + ... + 249113380.

It is an arithmetic number, because the mean of its divisors is an integer number (1321668418224).

Almost surely, 2^{25556508577825} is an apocalyptic number.

25556508577825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25556508577825 is a deficient number, since it is larger than the sum of its proper divisors (6163533459551).

25556508577825 is a wasteful number, since it uses less digits than its factorization.

25556508577825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111945 (or 111940 counting only the distinct ones).

The product of its (nonzero) digits is 1176000000, while the sum is 70.

The spelling of 25556508577825 in words is "twenty-five trillion, five hundred fifty-six billion, five hundred eight million, five hundred seventy-seven thousand, eight hundred twenty-five".