25426224 has 100 divisors (see below), whose sum is σ = 76880496. Its totient is φ = 8097408.

The previous prime is 25426217. The next prime is 25426249. The reversal of 25426224 is 42262452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29382 + ... + 30234.

Almost surely, 2^25426224 is an apocalyptic number.

25426224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25426224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38440248).

25426224 is an abundant number, since it is smaller than the sum of its proper divisors (51454272).

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

25426224 is a wasteful number, since it uses less digits than its factorization.

25426224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 881 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 25426224 is about 5042.4422654107. The cubic root of 25426224 is about 294.0541341383.

Adding to 25426224 its reverse (42262452), we get a palindrome (67688676).

The spelling of 25426224 in words is "twenty-five million, four hundred twenty-six thousand, two hundred twenty-four".