8413775725 has 6 divisors (see below), whose sum is σ = 10433081930. Its totient is φ = 6731020560.

The previous prime is 8413775723. The next prime is 8413775731. The reversal of 8413775725 is 5275773148.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9653449 + 8404122276 = 3107^2 + 91674^2 .

It is not a de Polignac number, because 8413775725 - 2¹ = 8413775723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8413775723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168275490 + ... + 168275539.

Almost surely, 2^8413775725 is an apocalyptic number.

It is an amenable number.

8413775725 is a deficient number, since it is larger than the sum of its proper divisors (2019306205).

8413775725 is a wasteful number, since it uses less digits than its factorization.

8413775725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336551039 (or 336551034 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The square root of 8413775725 is about 91726.6358534968. The cubic root of 8413775725 is about 2033.9033445515.

The spelling of 8413775725 in words is "eight billion, four hundred thirteen million, seven hundred seventy-five thousand, seven hundred twenty-five".