3648554725 has 6 divisors (see below), whose sum is σ = 4524207890. Its totient is φ = 2918843760.

The previous prime is 3648554713. The next prime is 3648554729. The reversal of 3648554725 is 5274558463.

It can be written as a sum of positive squares in 3 ways, for example, as 515524 + 3648039201 = 718^2 + 60399^2 .

It is not a de Polignac number, because 3648554725 - 2⁷ = 3648554597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648554729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72971070 + ... + 72971119.

Almost surely, 2^3648554725 is an apocalyptic number.

It is an amenable number.

3648554725 is a deficient number, since it is larger than the sum of its proper divisors (875653165).

3648554725 is a wasteful number, since it uses less digits than its factorization.

3648554725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145942199 (or 145942194 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 49.

The square root of 3648554725 is about 60403.2675026774. The cubic root of 3648554725 is about 1539.4784770571.

The spelling of 3648554725 in words is "three billion, six hundred forty-eight million, five hundred fifty-four thousand, seven hundred twenty-five".