8791136050225 has 27 divisors (see below), whose sum is σ = 10929410520483. Its totient is φ = 7014632672640.

The previous prime is 8791136050211. The next prime is 8791136050237. The reversal of 8791136050225 is 5220506311978.

The square root of 8791136050225 is 2964985.

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

It can be written as a sum of positive squares in 13 ways, for example, as 176582327089 + 8614553723136 = 420217^2 + 2935056^2 .

It is not a de Polignac number, because 8791136050225 - 2³¹ = 8788988566577 is a prime.

It is a super-2 number, since 2×8791136050225² (a number of 27 digits) contains 22 as substring.

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, 10866669621 + ... + 10866670429.

Almost surely, 2^{8791136050225} is an apocalyptic number.

8791136050225 is the 2964985-th square number.

8791136050225 is the 1482493-rd centered octagonal number.

It is an amenable number.

8791136050225 is a deficient number, since it is larger than the sum of its proper divisors (2138274470258).

8791136050225 is an frugal number, since it uses more digits than its factorization.

8791136050225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

Multiplying 8791136050225 by its sum of digits (49), we get a square (430765666461025 = 20754895²).

The spelling of 8791136050225 in words is "eight trillion, seven hundred ninety-one billion, one hundred thirty-six million, fifty thousand, two hundred twenty-five".