25086607641 has 12 divisors (see below), whose sum is σ = 36324813460. Its totient is φ = 16683511680.

The previous prime is 25086607631. The next prime is 25086607657. The reversal of 25086607641 is 14670668052.

It can be written as a sum of positive squares in 2 ways, for example, as 19430966025 + 5655641616 = 139395^2 + 75204^2 .

It is not a de Polignac number, because 25086607641 - 2¹³ = 25086599449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25086607631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3403900 + ... + 3411261.

Almost surely, 2^25086607641 is an apocalyptic number.

It is an amenable number.

25086607641 is a deficient number, since it is larger than the sum of its proper divisors (11238205819).

25086607641 is a wasteful number, since it uses less digits than its factorization.

25086607641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815576 (or 6815573 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 25086607641 in words is "twenty-five billion, eighty-six million, six hundred seven thousand, six hundred forty-one".