25222064 has 60 divisors (see below), whose sum is σ = 58014144. Its totient is φ = 10588032.

The previous prime is 25222061. The next prime is 25222079. The reversal of 25222064 is 46022252.

It is not an unprimeable number, because it can be changed into a prime (25222061) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 41249 + ... + 41855.

Almost surely, 2^25222064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25222064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29007072).

25222064 is an abundant number, since it is smaller than the sum of its proper divisors (32792080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25222064 is a wasteful number, since it uses less digits than its factorization.

25222064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 25222064 is about 5022.1573053818. The cubic root of 25222064 is about 293.2649817785.

The spelling of 25222064 in words is "twenty-five million, two hundred twenty-two thousand, sixty-four".