25015223 has 4 divisors (see below), whose sum is σ = 25027800. Its totient is φ = 25002648.

The previous prime is 25015213. The next prime is 25015231. The reversal of 25015223 is 32251052.

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 25015223 - 2¹² = 25011127 is a prime.

It is a super-2 number, since 2×25015223² = 1251522763479458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25015195 and 25015204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25015213) 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, 2573 + ... + 7526.

It is an arithmetic number, because the mean of its divisors is an integer number (6256950).

Almost surely, 2^25015223 is an apocalyptic number.

25015223 is a deficient number, since it is larger than the sum of its proper divisors (12577).

25015223 is a wasteful number, since it uses less digits than its factorization.

25015223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576.

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

The square root of 25015223 is about 5001.5220683308. The cubic root of 25015223 is about 292.4611115416.

Adding to 25015223 its reverse (32251052), we get a palindrome (57266275).

The spelling of 25015223 in words is "twenty-five million, fifteen thousand, two hundred twenty-three".