25101930065 has 4 divisors (see below), whose sum is σ = 30122316084. Its totient is φ = 20081544048.

The previous prime is 25101930043. The next prime is 25101930067. The reversal of 25101930065 is 56003910152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16474492609 + 8627437456 = 128353^2 + 92884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25101930065 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25101930067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2510193002 + ... + 2510193011.

It is an arithmetic number, because the mean of its divisors is an integer number (7530579021).

Almost surely, 2^25101930065 is an apocalyptic number.

It is an amenable number.

25101930065 is a deficient number, since it is larger than the sum of its proper divisors (5020386019).

25101930065 is an equidigital number, since it uses as much as digits as its factorization.

25101930065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020386018.

The product of its (nonzero) digits is 8100, while the sum is 32.

The spelling of 25101930065 in words is "twenty-five billion, one hundred one million, nine hundred thirty thousand, sixty-five".