25202020252503 has 48 divisors (see below), whose sum is σ = 35929243091840. Its totient is φ = 15709606331904.

The previous prime is 25202020252477. The next prime is 25202020252511. The reversal of 25202020252503 is 30525202020252.

It is not a de Polignac number, because 25202020252503 - 2¹⁴ = 25202020236119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25202020252543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 358778901 + ... + 358849137.

Almost surely, 2^{25202020252503} is an apocalyptic number.

25202020252503 is a deficient number, since it is larger than the sum of its proper divisors (10727222839337).

25202020252503 is a wasteful number, since it uses less digits than its factorization.

25202020252503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72976 (or 72959 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 25202020252503 its reverse (30525202020252), we get a palindrome (55727222272755).

The spelling of 25202020252503 in words is "twenty-five trillion, two hundred two billion, twenty million, two hundred fifty-two thousand, five hundred three".