25254413424 has 90 divisors (see below), whose sum is σ = 71053590920. Its totient is φ = 8373552768.

The previous prime is 25254413417. The next prime is 25254413441. The reversal of 25254413424 is 42431445252.

25254413424 is a `hidden beast` number, since 25 + 254 + 41 + 342 + 4 = 666.

It is a super-2 number, since 2×25254413424² (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 an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5586237 + ... + 5590755.

Almost surely, 2^25254413424 is an apocalyptic number.

25254413424 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 25254413424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35526795460).

25254413424 is an abundant number, since it is smaller than the sum of its proper divisors (45799177496).

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

25254413424 is a wasteful number, since it uses less digits than its factorization.

25254413424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927 (or 4721 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

Adding to 25254413424 its reverse (42431445252), we get a palindrome (67685858676).

The spelling of 25254413424 in words is "twenty-five billion, two hundred fifty-four million, four hundred thirteen thousand, four hundred twenty-four".