25224451152 has 80 divisors (see below), whose sum is σ = 66014108160. Its totient is φ = 8298896256.

The previous prime is 25224451139. The next prime is 25224451177. The reversal of 25224451152 is 25115442252.

It is a super-3 number, since 3×25224451152³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1509499 + ... + 1526117.

It is an arithmetic number, because the mean of its divisors is an integer number (825176352).

Almost surely, 2^25224451152 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 25224451152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33007054080).

25224451152 is an abundant number, since it is smaller than the sum of its proper divisors (40789657008).

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

25224451152 is a wasteful number, since it uses less digits than its factorization.

25224451152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17040 (or 17034 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

The spelling of 25224451152 in words is "twenty-five billion, two hundred twenty-four million, four hundred fifty-one thousand, one hundred fifty-two".