8213758625 has 16 divisors (see below), whose sum is σ = 10280197200. Its totient is φ = 6552144000.

The previous prime is 8213758613. The next prime is 8213758633. The reversal of 8213758625 is 5268573128.

It can be written as a sum of positive squares in 8 ways, for example, as 939545104 + 7274213521 = 30652^2 + 85289^2 .

It is not a de Polignac number, because 8213758625 - 2¹⁸ = 8213496481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8213758625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50516 + ... + 137765.

It is an arithmetic number, because the mean of its divisors is an integer number (642512325).

Almost surely, 2^8213758625 is an apocalyptic number.

It is an amenable number.

8213758625 is a deficient number, since it is larger than the sum of its proper divisors (2066438575).

8213758625 is a wasteful number, since it uses less digits than its factorization.

8213758625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188645 (or 188635 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 8213758625 is about 90629.7888389905. The cubic root of 8213758625 is about 2017.6568773575.

The spelling of 8213758625 in words is "eight billion, two hundred thirteen million, seven hundred fifty-eight thousand, six hundred twenty-five".