25072223 has 4 divisors (see below), whose sum is σ = 27351528. Its totient is φ = 22792920.

The previous prime is 25072219. The next prime is 25072253. The reversal of 25072223 is 32227052.

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 25072223 - 2² = 25072219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25072253) 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, 1139636 + ... + 1139657.

It is an arithmetic number, because the mean of its divisors is an integer number (6837882).

Almost surely, 2^25072223 is an apocalyptic number.

25072223 is a deficient number, since it is larger than the sum of its proper divisors (2279305).

25072223 is a wasteful number, since it uses less digits than its factorization.

25072223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279304.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 25072223 is about 5007.2170913592. The cubic root of 25072223 is about 292.6830782171.

Adding to 25072223 its reverse (32227052), we get a palindrome (57299275).

The spelling of 25072223 in words is "twenty-five million, seventy-two thousand, two hundred twenty-three".