25422544522452 has 192 divisors, whose sum is σ = 75053680773120. Its totient is φ = 6505823385600.

The previous prime is 25422544522433. The next prime is 25422544522471.

It is a happy number.

25422544522452 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (25422544522433) and next prime (25422544522471).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22558243 + ... + 23658389.

It is an arithmetic number, because the mean of its divisors is an integer number (390904587360).

Almost surely, 2^{25422544522452} is an apocalyptic number.

25422544522452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25422544522452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37526840386560).

25422544522452 is an abundant number, since it is smaller than the sum of its proper divisors (49631136250668).

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

25422544522452 is a wasteful number, since it uses less digits than its factorization.

25422544522452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100542 (or 1100540 counting only the distinct ones).

The product of its digits is 10240000, while the sum is 48.

The spelling of 25422544522452 in words is "twenty-five trillion, four hundred twenty-two billion, five hundred forty-four million, five hundred twenty-two thousand, four hundred fifty-two".