25002003 has 8 divisors (see below), whose sum is σ = 35900368. Its totient is φ = 15385824.

The previous prime is 25002001. The next prime is 25002037. The reversal of 25002003 is 30020052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25002003 - 2¹ = 25002001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25002003.

It is not an unprimeable number, because it can be changed into a prime (25002001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320500 + ... + 320577.

It is an arithmetic number, because the mean of its divisors is an integer number (4487546).

Almost surely, 2^25002003 is an apocalyptic number.

25002003 is a deficient number, since it is larger than the sum of its proper divisors (10898365).

25002003 is a wasteful number, since it uses less digits than its factorization.

25002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641093.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 25002003 is about 5000.2002959882. The cubic root of 25002003 is about 292.4095826894.

Adding to 25002003 its reverse (30020052), we get a palindrome (55022055).

It can be divided in two parts, 2 and 5002003, that added together give a palindrome (5002005).

The spelling of 25002003 in words is "twenty-five million, two thousand, three".