25650412256491 has 16 divisors (see below), whose sum is σ = 28157896988928. Its totient is φ = 23172279104800.

The previous prime is 25650412256479. The next prime is 25650412256519. The reversal of 25650412256491 is 19465221405652.

It is a cyclic number.

It is not a de Polignac number, because 25650412256491 - 2⁷ = 25650412256363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25650412256401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4413081 + ... + 8412853.

It is an arithmetic number, because the mean of its divisors is an integer number (1759868561808).

Almost surely, 2^{25650412256491} is an apocalyptic number.

25650412256491 is a deficient number, since it is larger than the sum of its proper divisors (2507484732437).

25650412256491 is a wasteful number, since it uses less digits than its factorization.

25650412256491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003442.

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 25650412256491 in words is "twenty-five trillion, six hundred fifty billion, four hundred twelve million, two hundred fifty-six thousand, four hundred ninety-one".