25305552505025 has 48 divisors (see below), whose sum is σ = 35573458569600. Its totient is φ = 17702520399360.

The previous prime is 25305552504977. The next prime is 25305552505087. The reversal of 25305552505025 is 52050525550352.

It is not a de Polignac number, because 25305552505025 - 2¹⁸ = 25305552242881 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, 104168252 + ... + 104410898.

It is an arithmetic number, because the mean of its divisors is an integer number (741113720200).

Almost surely, 2^{25305552505025} is an apocalyptic number.

25305552505025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25305552505025 is a deficient number, since it is larger than the sum of its proper divisors (10267906064575).

25305552505025 is a wasteful number, since it uses less digits than its factorization.

25305552505025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259578 (or 259573 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 44.

The spelling of 25305552505025 in words is "twenty-five trillion, three hundred five billion, five hundred fifty-two million, five hundred five thousand, twenty-five".