25634422443652 has 48 divisors (see below), whose sum is σ = 49489933772160. Its totient is φ = 11520711417600.

The previous prime is 25634422443631. The next prime is 25634422443671.

25634422443652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25634422443652² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25634422443652.

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, 144321577 + ... + 144499087.

It is an arithmetic number, because the mean of its divisors is an integer number (1031040286920).

Almost surely, 2^{25634422443652} is an apocalyptic number.

25634422443652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25634422443652 is a deficient number, since it is larger than the sum of its proper divisors (23855511328508).

25634422443652 is a wasteful number, since it uses less digits than its factorization.

25634422443652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214492 (or 214490 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 52.

The spelling of 25634422443652 in words is "twenty-five trillion, six hundred thirty-four billion, four hundred twenty-two million, four hundred forty-three thousand, six hundred fifty-two".