25288120185225 has 48 divisors (see below), whose sum is σ = 41830896526272. Its totient is φ = 13480159221760.

The previous prime is 25288120185203. The next prime is 25288120185257. The reversal of 25288120185225 is 52258102188252.

It is a de Polignac number, because none of the positive numbers 2^k-25288120185225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1865862049 + ... + 1865875601.

It is an arithmetic number, because the mean of its divisors is an integer number (871477010964).

Almost surely, 2^{25288120185225} is an apocalyptic number.

25288120185225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25288120185225 is a deficient number, since it is larger than the sum of its proper divisors (16542776341047).

25288120185225 is a wasteful number, since it uses less digits than its factorization.

25288120185225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24346 (or 24341 counting only the distinct ones).

The product of its (nonzero) digits is 2048000, while the sum is 51.

The spelling of 25288120185225 in words is "twenty-five trillion, two hundred eighty-eight billion, one hundred twenty million, one hundred eighty-five thousand, two hundred twenty-five".