25122251524225 has 48 divisors (see below), whose sum is σ = 33877448954496. Its totient is φ = 18403286400000.

The previous prime is 25122251524217. The next prime is 25122251524231. The reversal of 25122251524225 is 52242515222152.

It is not a de Polignac number, because 25122251524225 - 2³ = 25122251524217 is a prime.

It is a super-2 number, since 2×25122251524225² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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, 365587620 + ... + 365656330.

It is an arithmetic number, because the mean of its divisors is an integer number (705780186552).

Almost surely, 2^{25122251524225} is an apocalyptic number.

25122251524225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25122251524225 is a deficient number, since it is larger than the sum of its proper divisors (8755197430271).

25122251524225 is a wasteful number, since it uses less digits than its factorization.

25122251524225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92026 (or 92021 counting only the distinct ones).

The product of its digits is 320000, while the sum is 40.

Adding to 25122251524225 its reverse (52242515222152), we get a palindrome (77364766746377).

The spelling of 25122251524225 in words is "twenty-five trillion, one hundred twenty-two billion, two hundred fifty-one million, five hundred twenty-four thousand, two hundred twenty-five".