1650243325 has 12 divisors (see below), whose sum is σ = 2048314708. Its totient is φ = 1318896000.

The previous prime is 1650243313. The next prime is 1650243337. The reversal of 1650243325 is 5233420561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1650243313) and next prime (1650243337).

It can be written as a sum of positive squares in 6 ways, for example, as 288116676 + 1362126649 = 16974^2 + 36907^2 .

It is not a de Polignac number, because 1650243325 - 2¹⁵ = 1650210557 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6126 + ... + 57775.

Almost surely, 2^1650243325 is an apocalyptic number.

It is an amenable number.

1650243325 is a deficient number, since it is larger than the sum of its proper divisors (398071383).

1650243325 is a wasteful number, since it uses less digits than its factorization.

1650243325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64944 (or 64939 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1650243325 is about 40623.1870364697. The cubic root of 1650243325 is about 1181.7238342424.

Adding to 1650243325 its reverse (5233420561), we get a palindrome (6883663886).

The spelling of 1650243325 in words is "one billion, six hundred fifty million, two hundred forty-three thousand, three hundred twenty-five".