3539221225 has 6 divisors (see below), whose sum is σ = 4388634350. Its totient is φ = 2831376960.

The previous prime is 3539221187. The next prime is 3539221267. The reversal of 3539221225 is 5221229353.

It can be written as a sum of positive squares in 3 ways, for example, as 30791401 + 3508429824 = 5549^2 + 59232^2 .

It is not a de Polignac number, because 3539221225 - 2¹³ = 3539213033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70784400 + ... + 70784449.

Almost surely, 2^3539221225 is an apocalyptic number.

It is an amenable number.

3539221225 is a deficient number, since it is larger than the sum of its proper divisors (849413125).

3539221225 is a wasteful number, since it uses less digits than its factorization.

3539221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141568859 (or 141568854 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 3539221225 is about 59491.3542037833. The cubic root of 3539221225 is about 1523.9448008116.

The spelling of 3539221225 in words is "three billion, five hundred thirty-nine million, two hundred twenty-one thousand, two hundred twenty-five".