25418531088 has 240 divisors, whose sum is σ = 75151440000. Its totient is φ = 8008906752.

The previous prime is 25418531069. The next prime is 25418531111. The reversal of 25418531088 is 88013581452.

25418531088 is a `hidden beast` number, since 25 + 4 + 18 + 531 + 0 + 88 = 666.

It is a super-2 number, since 2×25418531088² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60664543 + ... + 60664961.

It is an arithmetic number, because the mean of its divisors is an integer number (313131000).

Almost surely, 2^25418531088 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 25418531088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37575720000).

25418531088 is an abundant number, since it is smaller than the sum of its proper divisors (49732908912).

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

25418531088 is a wasteful number, since it uses less digits than its factorization.

25418531088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 25418531088 in words is "twenty-five billion, four hundred eighteen million, five hundred thirty-one thousand, eighty-eight".