25223054532 has 96 divisors (see below), whose sum is σ = 65078899200. Its totient is φ = 7553925120.

The previous prime is 25223054503. The next prime is 25223054543. The reversal of 25223054532 is 23545032252.

It is a junction number, because it is equal to n+sod(n) for n = 25223054493 and 25223054502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2867413 + ... + 2876195.

It is an arithmetic number, because the mean of its divisors is an integer number (677905200).

Almost surely, 2^25223054532 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 25223054532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32539449600).

25223054532 is an abundant number, since it is smaller than the sum of its proper divisors (39855844668).

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

25223054532 is a wasteful number, since it uses less digits than its factorization.

25223054532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293 (or 9291 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 25223054532 its reverse (23545032252), we get a palindrome (48768086784).

The spelling of 25223054532 in words is "twenty-five billion, two hundred twenty-three million, fifty-four thousand, five hundred thirty-two".