25363260563616 has 72 divisors (see below), whose sum is σ = 72436329381780. Its totient is φ = 8418135100416.

The previous prime is 25363260563609. The next prime is 25363260563651. The reversal of 25363260563616 is 61636506236352.

25363260563616 is a `hidden beast` number, since 2 + 5 + 3 + 6 + 3 + 2 + 60 + 563 + 6 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25350218010000 + 13042553616 = 5034900^2 + 114204^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×25363260563616² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188917611 + ... + 189051818.

Almost surely, 2^{25363260563616} is an apocalyptic number.

It is an amenable number.

25363260563616 is an abundant number, since it is smaller than the sum of its proper divisors (47073068818164).

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

25363260563616 is a wasteful number, since it uses less digits than its factorization.

25363260563616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377969678 (or 377969667 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 54.

Adding to 25363260563616 its reverse (61636506236352), we get a palindrome (86999766799968).

The spelling of 25363260563616 in words is "twenty-five trillion, three hundred sixty-three billion, two hundred sixty million, five hundred sixty-three thousand, six hundred sixteen".