2645253825 has 12 divisors (see below), whose sum is σ = 4373486448. Its totient is φ = 1410802000.

The previous prime is 2645253803. The next prime is 2645253827. The reversal of 2645253825 is 5283525462.

It is not a de Polignac number, because 2645253825 - 2⁶ = 2645253761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2645253827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17634951 + ... + 17635100.

It is an arithmetic number, because the mean of its divisors is an integer number (364457204).

Almost surely, 2^2645253825 is an apocalyptic number.

2645253825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2645253825 is a deficient number, since it is larger than the sum of its proper divisors (1728232623).

2645253825 is a wasteful number, since it uses less digits than its factorization.

2645253825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35270064 (or 35270059 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

The square root of 2645253825 is about 51432.0311187493. The cubic root of 2645253825 is about 1383.0008605680. Note that the first 3 decimals are identical.

The spelling of 2645253825 in words is "two billion, six hundred forty-five million, two hundred fifty-three thousand, eight hundred twenty-five".