3651273025 has 12 divisors (see below), whose sum is σ = 4530053932. Its totient is φ = 2919421440.

The previous prime is 3651273013. The next prime is 3651273049. The reversal of 3651273025 is 5203721563.

It can be written as a sum of positive squares in 6 ways, for example, as 533055744 + 3118217281 = 23088^2 + 55841^2 .

It is not a de Polignac number, because 3651273025 - 2⁵ = 3651272993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7837 + ... + 85813.

Almost surely, 2^3651273025 is an apocalyptic number.

It is an amenable number.

3651273025 is a deficient number, since it is larger than the sum of its proper divisors (878780907).

3651273025 is a wasteful number, since it uses less digits than its factorization.

3651273025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79860 (or 79855 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 3651273025 is about 60425.7645793580. The cubic root of 3651273025 is about 1539.8607037947.

Adding to 3651273025 its reverse (5203721563), we get a palindrome (8854994588).

It can be divided in two parts, 3651 and 273025, that added together give a square (276676 = 526²).

The spelling of 3651273025 in words is "three billion, six hundred fifty-one million, two hundred seventy-three thousand, twenty-five".