10889966025 has 63 divisors (see below), whose sum is σ = 20272300549. Its totient is φ = 5800468320.

The previous prime is 10889966023. The next prime is 10889966047. The reversal of 10889966025 is 52066998801.

It is a happy number.

The square root of 10889966025 is 104355.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4223570121 + 6666395904 = 64989^2 + 81648^2 .

It is not a de Polignac number, because 10889966025 - 2¹ = 10889966023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10889966023) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 14087539 + ... + 14088311.

Almost surely, 2^10889966025 is an apocalyptic number.

10889966025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10889966025 is the 104355-th square number.

10889966025 is the 52178-th centered octagonal number.

It is an amenable number.

10889966025 is a deficient number, since it is larger than the sum of its proper divisors (9382334524).

10889966025 is an frugal number, since it uses more digits than its factorization.

10889966025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 10889966025 in words is "ten billion, eight hundred eighty-nine million, nine hundred sixty-six thousand, twenty-five".