25256652224 has 56 divisors (see below), whose sum is σ = 51108284880. Its totient is φ = 12379387904.

The previous prime is 25256652203. The next prime is 25256652229. The reversal of 25256652224 is 42225665252.

It is a super-3 number, since 3×25256652224³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256652229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5163572 + ... + 5168460.

Almost surely, 2^25256652224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25256652224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25554142440).

25256652224 is an abundant number, since it is smaller than the sum of its proper divisors (25851632656).

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

25256652224 is a wasteful number, since it uses less digits than its factorization.

25256652224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477 (or 6467 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

The spelling of 25256652224 in words is "twenty-five billion, two hundred fifty-six million, six hundred fifty-two thousand, two hundred twenty-four".