39289186225 has 27 divisors (see below), whose sum is σ = 50493409057. Its totient is φ = 30325309280.

The previous prime is 39289186163. The next prime is 39289186231. The reversal of 39289186225 is 52268198293.

The square root of 39289186225 is 198215.

It is a perfect power (a square), and thus also a powerful number.

39289186225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 540051121 + 38749135104 = 23239^2 + 196848^2 .

It is a de Polignac number, because none of the positive numbers 2^k-39289186225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 28740492 + ... + 28741858.

Almost surely, 2^39289186225 is an apocalyptic number.

39289186225 is the 198215-th square number.

39289186225 is the 99108-th centered octagonal number.

It is an amenable number.

39289186225 is a deficient number, since it is larger than the sum of its proper divisors (11204222832).

39289186225 is an frugal number, since it uses more digits than its factorization.

39289186225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 1401 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

The spelling of 39289186225 in words is "thirty-nine billion, two hundred eighty-nine million, one hundred eighty-six thousand, two hundred twenty-five".