25785928152 has 80 divisors (see below), whose sum is σ = 72344564160. Its totient is φ = 8581018176.

The previous prime is 25785928127. The next prime is 25785928159. The reversal of 25785928152 is 25182958752.

25785928152 is a `hidden beast` number, since 2 + 578 + 59 + 2 + 8 + 15 + 2 = 666.

It is a super-2 number, since 2×25785928152² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25785928159) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 360558 + ... + 426114.

It is an arithmetic number, because the mean of its divisors is an integer number (904307052).

Almost surely, 2^25785928152 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 25785928152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36172282080).

25785928152 is an abundant number, since it is smaller than the sum of its proper divisors (46558636008).

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

25785928152 is a wasteful number, since it uses less digits than its factorization.

25785928152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66182 (or 66169 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 54.

The spelling of 25785928152 in words is "twenty-five billion, seven hundred eighty-five million, nine hundred twenty-eight thousand, one hundred fifty-two".