25332254424 has 96 divisors (see below), whose sum is σ = 70401240000. Its totient is φ = 8224104960.

The previous prime is 25332254413. The next prime is 25332254429. The reversal of 25332254424 is 42445223352.

25332254424 is a `hidden beast` number, since 2 + 5 + 3 + 3 + 225 + 4 + 424 = 666.

It is a super-2 number, since 2×25332254424² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25332254429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1802577 + ... + 1816575.

It is an arithmetic number, because the mean of its divisors is an integer number (733346250).

Almost surely, 2^25332254424 is an apocalyptic number.

25332254424 is a gapful number since it is divisible by the number (24) 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 25332254424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35200620000).

25332254424 is an abundant number, since it is smaller than the sum of its proper divisors (45068985576).

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

25332254424 is a wasteful number, since it uses less digits than its factorization.

25332254424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14665 (or 14658 counting only the distinct ones).

The product of its digits is 230400, while the sum is 36.

Adding to 25332254424 its reverse (42445223352), we get a palindrome (67777477776).

It can be divided in two parts, 2533225 and 4424, that added together give a square (2537649 = 1593²).

The spelling of 25332254424 in words is "twenty-five billion, three hundred thirty-two million, two hundred fifty-four thousand, four hundred twenty-four".