25232228352 has 150 divisors (see below), whose sum is σ = 75386840298. Its totient is φ = 8410300416.

The previous prime is 25232228339. The next prime is 25232228369. The reversal of 25232228352 is 25382223252.

25232228352 is a `hidden beast` number, since 2 + 5 + 2 + 322 + 283 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12745506816 + 12486721536 = 112896^2 + 111744^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1317598 + ... + 1336610.

Almost surely, 2^25232228352 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 25232228352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37693420149).

25232228352 is an abundant number, since it is smaller than the sum of its proper divisors (50154611946).

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

25232228352 is an frugal number, since it uses more digits than its factorization.

25232228352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19053 (or 19018 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The spelling of 25232228352 in words is "twenty-five billion, two hundred thirty-two million, two hundred twenty-eight thousand, three hundred fifty-two".