25112655321511 has 4 divisors (see below), whose sum is σ = 25456664298592. Its totient is φ = 24768646344432.

The previous prime is 25112655321499. The next prime is 25112655321517. The reversal of 25112655321511 is 11512355621152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25112655321511 - 2⁹ = 25112655320999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25112655321517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172004488431 + ... + 172004488576.

It is an arithmetic number, because the mean of its divisors is an integer number (6364166074648).

Almost surely, 2^{25112655321511} is an apocalyptic number.

25112655321511 is a deficient number, since it is larger than the sum of its proper divisors (344008977081).

25112655321511 is an equidigital number, since it uses as much as digits as its factorization.

25112655321511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344008977080.

The product of its digits is 90000, while the sum is 40.

The spelling of 25112655321511 in words is "twenty-five trillion, one hundred twelve billion, six hundred fifty-five million, three hundred twenty-one thousand, five hundred eleven".