25051223 has 4 divisors (see below), whose sum is σ = 25475880. Its totient is φ = 24626568.

The previous prime is 25051219. The next prime is 25051277. The reversal of 25051223 is 32215052.

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

It is a cyclic number.

It is not a de Polignac number, because 25051223 - 2² = 25051219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25051195 and 25051204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212240 + ... + 212357.

It is an arithmetic number, because the mean of its divisors is an integer number (6368970).

Almost surely, 2^25051223 is an apocalyptic number.

25051223 is a deficient number, since it is larger than the sum of its proper divisors (424657).

25051223 is an equidigital number, since it uses as much as digits as its factorization.

25051223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424656.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25051223 is about 5005.1196788888. The cubic root of 25051223 is about 292.6013401989.

Adding to 25051223 its reverse (32215052), we get a palindrome (57266275).

The spelling of 25051223 in words is "twenty-five million, fifty-one thousand, two hundred twenty-three".