25550003 has 8 divisors (see below), whose sum is σ = 26962320. Its totient is φ = 24144480.

The previous prime is 25549991. The next prime is 25550027. The reversal of 25550003 is 30005552.

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

It is a cyclic number.

It is not a de Polignac number, because 25550003 - 2⁶ = 25549939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25510003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7301 + ... + 10217.

It is an arithmetic number, because the mean of its divisors is an integer number (3370290).

Almost surely, 2^25550003 is an apocalyptic number.

25550003 is a deficient number, since it is larger than the sum of its proper divisors (1412317).

25550003 is a wasteful number, since it uses less digits than its factorization.

25550003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 25550003 is about 5054.7010791935. The cubic root of 25550003 is about 294.5305297229.

Adding to 25550003 its reverse (30005552), we get a palindrome (55555555).

The spelling of 25550003 in words is "twenty-five million, five hundred fifty thousand, three".