25000003 has 4 divisors (see below), whose sum is σ = 28571440. Its totient is φ = 21428568.

The previous prime is 24999983. The next prime is 25000009. The reversal of 25000003 is 30000052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25000003 - 2⁵ = 24999971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25000009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785708 + ... + 1785721.

It is an arithmetic number, because the mean of its divisors is an integer number (7142860).

Almost surely, 2^25000003 is an apocalyptic number.

25000003 is a deficient number, since it is larger than the sum of its proper divisors (3571437).

25000003 is an equidigital number, since it uses as much as digits as its factorization.

25000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571436.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 25000003 is about 5000.0003000000. Note that the first 3 decimals coincide. The cubic root of 25000003 is about 292.4017855174.

Adding to 25000003 its reverse (30000052), we get a palindrome (55000055).

It can be divided in two parts, 2 and 5000003, that added together give a palindrome (5000005).

The spelling of 25000003 in words is "twenty-five million, three", and thus it is an aban number and an uban number.