25282835136 has 168 divisors, whose sum is σ = 78143256464. Its totient is φ = 7769364480.

The previous prime is 25282835113. The next prime is 25282835141. The reversal of 25282835136 is 63153828252.

25282835136 is a `hidden beast` number, since 2 + 52 + 8 + 2 + 83 + 513 + 6 = 666.

It is a super-2 number, since 2×25282835136² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25282835091 and 25282835100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7643595 + ... + 7646901.

Almost surely, 2^25282835136 is an apocalyptic number.

25282835136 is a gapful number since it is divisible by the number (26) 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 25282835136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39071628232).

25282835136 is an abundant number, since it is smaller than the sum of its proper divisors (52860421328).

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

25282835136 is a wasteful number, since it uses less digits than its factorization.

25282835136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359 (or 4346 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 25282835136 in words is "twenty-five billion, two hundred eighty-two million, eight hundred thirty-five thousand, one hundred thirty-six".