2645253525 has 24 divisors (see below), whose sum is σ = 4406887584. Its totient is φ = 1400027200.

The previous prime is 2645253509. The next prime is 2645253571. The reversal of 2645253525 is 5253525462.

It is not a de Polignac number, because 2645253525 - 2⁴ = 2645253509 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 124794 + ... + 144443.

It is an arithmetic number, because the mean of its divisors is an integer number (183620316).

Almost surely, 2^2645253525 is an apocalyptic number.

2645253525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2645253525 is a deficient number, since it is larger than the sum of its proper divisors (1761634059).

2645253525 is a wasteful number, since it uses less digits than its factorization.

2645253525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269381 (or 269376 counting only the distinct ones).

The product of its digits is 360000, while the sum is 39.

The square root of 2645253525 is about 51432.0282022788. The cubic root of 2645253525 is about 1383.0008082857. Note that the first 3 decimals are identical.

Adding to 2645253525 its reverse (5253525462), we get a palindrome (7898778987).

The spelling of 2645253525 in words is "two billion, six hundred forty-five million, two hundred fifty-three thousand, five hundred twenty-five".