25000005003 has 16 divisors (see below), whose sum is σ = 35107950720. Its totient is φ = 15780375936.

The previous prime is 25000004999. The next prime is 25000005013. The reversal of 25000005003 is 30050000052.

It is not a de Polignac number, because 25000005003 - 2² = 25000004999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25000005013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25950 + ... + 225107.

It is an arithmetic number, because the mean of its divisors is an integer number (2194246920).

Almost surely, 2^25000005003 is an apocalyptic number.

25000005003 is a deficient number, since it is larger than the sum of its proper divisors (10107945717).

25000005003 is a wasteful number, since it uses less digits than its factorization.

25000005003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252826.

The product of its (nonzero) digits is 150, while the sum is 15.

Adding to 25000005003 its reverse (30050000052), we get a palindrome (55050005055).

The spelling of 25000005003 in words is "twenty-five billion, five thousand, three".