25646354644053 has 64 divisors (see below), whose sum is σ = 42637488493824. Its totient is φ = 13471557120000.

The previous prime is 25646354644049. The next prime is 25646354644067. The reversal of 25646354644053 is 35044645364652.

It is not a de Polignac number, because 25646354644053 - 2² = 25646354644049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25646354643984 and 25646354644002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25646354644093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1106098 + ... + 7246803.

It is an arithmetic number, because the mean of its divisors is an integer number (666210757716).

Almost surely, 2^{25646354644053} is an apocalyptic number.

It is an amenable number.

25646354644053 is a deficient number, since it is larger than the sum of its proper divisors (16991133849771).

25646354644053 is a wasteful number, since it uses less digits than its factorization.

25646354644053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353366.

The product of its (nonzero) digits is 124416000, while the sum is 57.

The spelling of 25646354644053 in words is "twenty-five trillion, six hundred forty-six billion, three hundred fifty-four million, six hundred forty-four thousand, fifty-three".