25003203345 has 48 divisors (see below), whose sum is σ = 43731232272. Its totient is φ = 13214845440.

The previous prime is 25003203301. The next prime is 25003203367. The reversal of 25003203345 is 54330230052.

25003203345 is a `hidden beast` number, since 2 + 5 + 0 + 0 + 320 + 334 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3969 + 25003199376 = 63^2 + 158124^2 .

It is not a de Polignac number, because 25003203345 - 2³⁴ = 7823334161 is a prime.

It is a super-2 number, since 2×25003203345² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2381247 + ... + 2391723.

It is an arithmetic number, because the mean of its divisors is an integer number (911067339).

Almost surely, 2^25003203345 is an apocalyptic number.

It is an amenable number.

25003203345 is a deficient number, since it is larger than the sum of its proper divisors (18728028927).

25003203345 is a wasteful number, since it uses less digits than its factorization.

25003203345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962 (or 10959 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

Adding to 25003203345 its reverse (54330230052), we get a palindrome (79333433397).

The spelling of 25003203345 in words is "twenty-five billion, three million, two hundred three thousand, three hundred forty-five".