25532214220 has 24 divisors (see below), whose sum is σ = 55466535600. Its totient is φ = 9860716992.

The previous prime is 25532214163. The next prime is 25532214263. The reversal of 25532214220 is 2241223552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22009950 + ... + 22011109.

It is an arithmetic number, because the mean of its divisors is an integer number (2311105650).

Almost surely, 2^25532214220 is an apocalyptic number.

25532214220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25532214220 is an abundant number, since it is smaller than the sum of its proper divisors (29934321380).

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

25532214220 is a wasteful number, since it uses less digits than its factorization.

25532214220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44021097 (or 44021095 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 25532214220 its reverse (2241223552), we get a palindrome (27773437772).

The spelling of 25532214220 in words is "twenty-five billion, five hundred thirty-two million, two hundred fourteen thousand, two hundred twenty".