25222523 has 4 divisors (see below), whose sum is σ = 25404120. Its totient is φ = 25040928.

The previous prime is 25222471. The next prime is 25222529. The reversal of 25222523 is 32522252.

It is a happy number.

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 25222523 - 2⁶ = 25222459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25222529) 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, 90590 + ... + 90867.

It is an arithmetic number, because the mean of its divisors is an integer number (6351030).

Almost surely, 2^25222523 is an apocalyptic number.

25222523 is a deficient number, since it is larger than the sum of its proper divisors (181597).

25222523 is a wasteful number, since it uses less digits than its factorization.

25222523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181596.

The product of its digits is 2400, while the sum is 23.

The square root of 25222523 is about 5022.2030026673. The cubic root of 25222523 is about 293.2667607475.

Adding to 25222523 its reverse (32522252), we get a palindrome (57744775).

The spelling of 25222523 in words is "twenty-five million, two hundred twenty-two thousand, five hundred twenty-three".