25561466416552 has 64 divisors (see below), whose sum is σ = 53972904960000. Its totient is φ = 11243738424000.

The previous prime is 25561466416529. The next prime is 25561466416573.

25561466416552 is nontrivially palindromic in base 10.

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, 119900949 + ... + 120113947.

It is an arithmetic number, because the mean of its divisors is an integer number (843326640000).

Almost surely, 2^{25561466416552} is an apocalyptic number.

25561466416552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25561466416552 is an abundant number, since it is smaller than the sum of its proper divisors (28411438543448).

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

25561466416552 is a wasteful number, since it uses less digits than its factorization.

25561466416552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257038 (or 257034 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 58.

The spelling of 25561466416552 in words is "twenty-five trillion, five hundred sixty-one billion, four hundred sixty-six million, four hundred sixteen thousand, five hundred fifty-two".