25001223 has 8 divisors (see below), whose sum is σ = 35899248. Its totient is φ = 15385344.

The previous prime is 25001201. The next prime is 25001231. The reversal of 25001223 is 32210052.

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

It is not a de Polignac number, because 25001223 - 2⁹ = 25000711 is a prime.

It is a super-2 number, since 2×25001223² = 1250122302991458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001243) 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, 320490 + ... + 320567.

It is an arithmetic number, because the mean of its divisors is an integer number (4487406).

Almost surely, 2^25001223 is an apocalyptic number.

25001223 is a deficient number, since it is larger than the sum of its proper divisors (10898025).

25001223 is a wasteful number, since it uses less digits than its factorization.

25001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641073.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25001223 is about 5000.1222985043. The cubic root of 25001223 is about 292.4065418418.

Adding to 25001223 its reverse (32210052), we get a palindrome (57211275).

The spelling of 25001223 in words is "twenty-five million, one thousand, two hundred twenty-three".