25222648 has 32 divisors (see below), whose sum is σ = 51788160. Its totient is φ = 11421280.

The previous prime is 25222643. The next prime is 25222649. The reversal of 25222648 is 84622252.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222643) 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 7 ways as a sum of consecutive naturals, for example, 38661 + ... + 39307.

It is an arithmetic number, because the mean of its divisors is an integer number (1618380).

Almost surely, 2^25222648 is an apocalyptic number.

It is an amenable number.

25222648 is an abundant number, since it is smaller than the sum of its proper divisors (26565512).

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

25222648 is a wasteful number, since it uses less digits than its factorization.

25222648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1103 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 25222648 is about 5022.2154473897. The cubic root of 25222648 is about 293.2672452124.

The spelling of 25222648 in words is "twenty-five million, two hundred twenty-two thousand, six hundred forty-eight".