25450222 has 8 divisors (see below), whose sum is σ = 43628976. Its totient is φ = 10907232.

The previous prime is 25450219. The next prime is 25450223. The reversal of 25450222 is 22205452.

It is a happy number.

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

It is a super-4 number, since 4×25450222⁴ (a number of 31 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25450193 and 25450202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25450223) 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, 908923 + ... + 908950.

It is an arithmetic number, because the mean of its divisors is an integer number (5453622).

Almost surely, 2^25450222 is an apocalyptic number.

25450222 is a deficient number, since it is larger than the sum of its proper divisors (18178754).

25450222 is a wasteful number, since it uses less digits than its factorization.

25450222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817882.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 25450222 is about 5044.8213050613. The cubic root of 25450222 is about 294.1466172923.

Adding to 25450222 its reverse (22205452), we get a palindrome (47655674).

The spelling of 25450222 in words is "twenty-five million, four hundred fifty thousand, two hundred twenty-two".