8125225911 has 60 divisors (see below), whose sum is σ = 13975241544. Its totient is φ = 4665016800.

The previous prime is 8125225903. The next prime is 8125225961. The reversal of 8125225911 is 1195225218.

8125225911 is a `hidden beast` number, since 8 + 12 + 52 + 2 + 591 + 1 = 666.

It is not a de Polignac number, because 8125225911 - 2³ = 8125225903 is a prime.

It is a super-2 number, since 2×8125225911² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8125225961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 309021 + ... + 334281.

Almost surely, 2^8125225911 is an apocalyptic number.

8125225911 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8125225911 is a deficient number, since it is larger than the sum of its proper divisors (5850015633).

8125225911 is a wasteful number, since it uses less digits than its factorization.

8125225911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25322 (or 25294 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 8125225911 is about 90140.0350066495. The cubic root of 8125225911 is about 2010.3815114537.

The spelling of 8125225911 in words is "eight billion, one hundred twenty-five million, two hundred twenty-five thousand, nine hundred eleven".