25281255218252 has 48 divisors (see below), whose sum is σ = 50940641875200. Its totient is φ = 10857478023360.

The previous prime is 25281255218243. The next prime is 25281255218357.

25281255218252 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 25281255218252.

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, 40225352 + ... + 40849007.

It is an arithmetic number, because the mean of its divisors is an integer number (1061263372400).

Almost surely, 2^{25281255218252} is an apocalyptic number.

25281255218252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25281255218252 is an abundant number, since it is smaller than the sum of its proper divisors (25659386656948).

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

25281255218252 is a wasteful number, since it uses less digits than its factorization.

25281255218252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81074766 (or 81074764 counting only the distinct ones).

The product of its digits is 2560000, while the sum is 50.

The spelling of 25281255218252 in words is "twenty-five trillion, two hundred eighty-one billion, two hundred fifty-five million, two hundred eighteen thousand, two hundred fifty-two".