8685625225725 has 288 divisors, whose sum is σ = 20390560793600. Its totient is φ = 3540313267200.

The previous prime is 8685625225723. The next prime is 8685625225777. The reversal of 8685625225725 is 5275225265868.

It is a happy number.

8685625225725 is a `hidden beast` number, since 8 + 6 + 8 + 5 + 6 + 2 + 52 + 2 + 572 + 5 = 666.

It is not a de Polignac number, because 8685625225725 - 2¹ = 8685625225723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8685625225721) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 25777590 + ... + 26112360.

Almost surely, 2^{8685625225725} is an apocalyptic number.

8685625225725 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8685625225725 is an abundant number, since it is smaller than the sum of its proper divisors (11704935567875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8685625225725 is a wasteful number, since it uses less digits than its factorization.

8685625225725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334850 (or 334822 counting only the distinct ones).

The product of its digits is 161280000, while the sum is 63.

The spelling of 8685625225725 in words is "eight trillion, six hundred eighty-five billion, six hundred twenty-five million, two hundred twenty-five thousand, seven hundred twenty-five".