10812880225 has 27 divisors (see below), whose sum is σ = 15602279571. Its totient is φ = 7412050800.

The previous prime is 10812880213. The next prime is 10812880237. The reversal of 10812880225 is 52208821801.

The square root of 10812880225 is 103985.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (10812880213) and next prime (10812880237).

It can be written as a sum of positive squares in only one way, i.e., 3892636881 + 6920243344 = 62391^2 + 83188^2 .

It is not a de Polignac number, because 10812880225 - 2⁷ = 10812880097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3637990 + ... + 3640960.

Almost surely, 2^10812880225 is an apocalyptic number.

10812880225 is the 103985-th square number.

10812880225 is the 51993-rd centered octagonal number.

It is an amenable number.

10812880225 is a deficient number, since it is larger than the sum of its proper divisors (4789399346).

10812880225 is an frugal number, since it uses more digits than its factorization.

10812880225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966 (or 2983 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The spelling of 10812880225 in words is "ten billion, eight hundred twelve million, eight hundred eighty thousand, two hundred twenty-five".