25438683452 has 48 divisors (see below), whose sum is σ = 56558487552. Its totient is φ = 9739016640.

The previous prime is 25438683433. The next prime is 25438683461.

25438683452 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 25438683452.

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, 1115918 + ... + 1138485.

It is an arithmetic number, because the mean of its divisors is an integer number (1178301824).

Almost surely, 2^25438683452 is an apocalyptic number.

It is an amenable number.

25438683452 is an abundant number, since it is smaller than the sum of its proper divisors (31119804100).

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

25438683452 is a wasteful number, since it uses less digits than its factorization.

25438683452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254458 (or 2254456 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 50.

The spelling of 25438683452 in words is "twenty-five billion, four hundred thirty-eight million, six hundred eighty-three thousand, four hundred fifty-two".