25384814832 has 80 divisors (see below), whose sum is σ = 71016704640. Its totient is φ = 7767042816.

The previous prime is 25384814831. The next prime is 25384814843. The reversal of 25384814832 is 23841848352.

It is a super-3 number, since 3×25384814832³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25384814831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938 + ... + 225329.

It is an arithmetic number, because the mean of its divisors is an integer number (887708808).

Almost surely, 2^25384814832 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 25384814832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35508352320).

25384814832 is an abundant number, since it is smaller than the sum of its proper divisors (45631889808).

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

25384814832 is a wasteful number, since it uses less digits than its factorization.

25384814832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227470 (or 227464 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 48.

The spelling of 25384814832 in words is "twenty-five billion, three hundred eighty-four million, eight hundred fourteen thousand, eight hundred thirty-two".