25222370 has 8 divisors (see below), whose sum is σ = 45400284. Its totient is φ = 10088944.

The previous prime is 25222363. The next prime is 25222397. The reversal of 25222370 is 7322252.

It can be written as a sum of positive squares in 2 ways, for example, as 23726641 + 1495729 = 4871^2 + 1223^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261109 + ... + 1261128.

Almost surely, 2^25222370 is an apocalyptic number.

25222370 is a deficient number, since it is larger than the sum of its proper divisors (20177914).

25222370 is a wasteful number, since it uses less digits than its factorization.

25222370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522244.

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

The square root of 25222370 is about 5022.1877702850. The cubic root of 25222370 is about 293.2661677602.

It can be divided in two parts, 252 and 22370, that added together give a palindrome (22622).

The spelling of 25222370 in words is "twenty-five million, two hundred twenty-two thousand, three hundred seventy".