25111261152256 has 22 divisors (see below), whose sum is σ = 50197999590590. Its totient is φ = 12555630575616.

The previous prime is 25111261152227. The next prime is 25111261152277. The reversal of 25111261152256 is 65225116211152.

It can be written as a sum of positive squares in only one way, i.e., 24766945689600 + 344315462656 = 4976640^2 + 586784^2 .

It is a super-3 number, since 3×25111261152256³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12261356961 + ... + 12261359008.

Almost surely, 2^{25111261152256} is an apocalyptic number.

It is an amenable number.

25111261152256 is a deficient number, since it is larger than the sum of its proper divisors (25086738438334).

25111261152256 is an equidigital number, since it uses as much as digits as its factorization.

25111261152256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24522715989 (or 24522715971 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

The spelling of 25111261152256 in words is "twenty-five trillion, one hundred eleven billion, two hundred sixty-one million, one hundred fifty-two thousand, two hundred fifty-six".