25543555534552 has 64 divisors (see below), whose sum is σ = 52418538151200. Its totient is φ = 11572870256640.

The previous prime is 25543555534517. The next prime is 25543555534571.

25543555534552 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25543555534552² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 102752518 + ... + 103000810.

Almost surely, 2^{25543555534552} is an apocalyptic number.

25543555534552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25543555534552 is an abundant number, since it is smaller than the sum of its proper divisors (26874982616648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25543555534552 is a wasteful number, since it uses less digits than its factorization.

25543555534552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252116 (or 252112 counting only the distinct ones).

The product of its digits is 225000000, while the sum is 58.

The spelling of 25543555534552 in words is "twenty-five trillion, five hundred forty-three billion, five hundred fifty-five million, five hundred thirty-four thousand, five hundred fifty-two".