25644433444652 has 12 divisors (see below), whose sum is σ = 48957554758056. Its totient is φ = 11656560656640.

The previous prime is 25644433444649. The next prime is 25644433444681.

25644433444652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25644433444652² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291414016373 + ... + 291414016460.

It is an arithmetic number, because the mean of its divisors is an integer number (4079796229838).

Almost surely, 2^{25644433444652} is an apocalyptic number.

25644433444652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25644433444652 is a deficient number, since it is larger than the sum of its proper divisors (23313121313404).

25644433444652 is a wasteful number, since it uses less digits than its factorization.

25644433444652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582828032848 (or 582828032846 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 56.

The spelling of 25644433444652 in words is "twenty-five trillion, six hundred forty-four billion, four hundred thirty-three million, four hundred forty-four thousand, six hundred fifty-two".