25512225112 has 32 divisors (see below), whose sum is σ = 52303046400. Its totient is φ = 11570032800.

The previous prime is 25512225073. The next prime is 25512225149. The reversal of 25512225112 is 21152221552.

It is a super-3 number, since 3×25512225112³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291564 + ... + 368827.

It is an arithmetic number, because the mean of its divisors is an integer number (1634470200).

Almost surely, 2^25512225112 is an apocalyptic number.

25512225112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25512225112 is an abundant number, since it is smaller than the sum of its proper divisors (26790821288).

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

25512225112 is a wasteful number, since it uses less digits than its factorization.

25512225112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660847 (or 660843 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

Adding to 25512225112 its reverse (21152221552), we get a palindrome (46664446664).

The spelling of 25512225112 in words is "twenty-five billion, five hundred twelve million, two hundred twenty-five thousand, one hundred twelve".