3240505025 has 12 divisors (see below), whose sum is σ = 4018943292. Its totient is φ = 2591941440.

The previous prime is 3240505001. The next prime is 3240505057. The reversal of 3240505025 is 5205050423.

It can be written as a sum of positive squares in 6 ways, for example, as 924585649 + 2315919376 = 30407^2 + 48124^2 .

It is not a de Polignac number, because 3240505025 - 2¹² = 3240500929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3240504985 and 3240505003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231527 + ... + 245123.

It is an arithmetic number, because the mean of its divisors is an integer number (334911941).

Almost surely, 2^3240505025 is an apocalyptic number.

It is an amenable number.

3240505025 is a deficient number, since it is larger than the sum of its proper divisors (778438267).

3240505025 is a wasteful number, since it uses less digits than its factorization.

3240505025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23140 (or 23135 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 3240505025 is about 56925.4339026063. The cubic root of 3240505025 is about 1479.8041232431.

Adding to 3240505025 its reverse (5205050423), we get a palindrome (8445555448).

The spelling of 3240505025 in words is "three billion, two hundred forty million, five hundred five thousand, twenty-five".