25625227685 has 16 divisors (see below), whose sum is σ = 31106735856. Its totient is φ = 20263077888.

The previous prime is 25625227669. The next prime is 25625227699. The reversal of 25625227685 is 58672252652.

It can be written as a sum of positive squares in 8 ways, for example, as 1854680356 + 23770547329 = 43066^2 + 154177^2 .

It is a cyclic number.

It is not a de Polignac number, because 25625227685 - 2⁴ = 25625227669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353399 + ... + 419691.

It is an arithmetic number, because the mean of its divisors is an integer number (1944170991).

Almost surely, 2^25625227685 is an apocalyptic number.

It is an amenable number.

25625227685 is a deficient number, since it is larger than the sum of its proper divisors (5481508171).

25625227685 is an equidigital number, since it uses as much as digits as its factorization.

25625227685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67192.

The product of its digits is 4032000, while the sum is 50.

The spelling of 25625227685 in words is "twenty-five billion, six hundred twenty-five million, two hundred twenty-seven thousand, six hundred eighty-five".