8922561525 has 18 divisors (see below), whose sum is σ = 15981299490. Its totient is φ = 4758699360.

The previous prime is 8922561523. The next prime is 8922561559. The reversal of 8922561525 is 5251652298.

8922561525 is a `hidden beast` number, since 8 + 9 + 2 + 2 + 5 + 615 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 100280196 + 8822281329 = 10014^2 + 93927^2 .

It is not a de Polignac number, because 8922561525 - 2¹ = 8922561523 is a prime.

It is a super-2 number, since 2×8922561525² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8922561523) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19827690 + ... + 19828139.

Almost surely, 2^8922561525 is an apocalyptic number.

It is an amenable number.

8922561525 is a deficient number, since it is larger than the sum of its proper divisors (7058737965).

8922561525 is a wasteful number, since it uses less digits than its factorization.

8922561525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39655845 (or 39655837 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 8922561525 is about 94459.3114785409. The cubic root of 8922561525 is about 2074.1007590442.

The spelling of 8922561525 in words is "eight billion, nine hundred twenty-two million, five hundred sixty-one thousand, five hundred twenty-five".