25424622 has 48 divisors (see below), whose sum is σ = 61410960. Its totient is φ = 7554816.

The previous prime is 25424621. The next prime is 25424647. The reversal of 25424622 is 22642452.

It is a happy number.

It is a super-2 number, since 2×25424622² = 1292822807685768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25424621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3628 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (1279395).

Almost surely, 2^25424622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25424622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30705480).

25424622 is an abundant number, since it is smaller than the sum of its proper divisors (35986338).

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

25424622 is a wasteful number, since it uses less digits than its factorization.

25424622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417 (or 4414 counting only the distinct ones).

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

The square root of 25424622 is about 5042.2834113128. The cubic root of 25424622 is about 294.0479583017.

The spelling of 25424622 in words is "twenty-five million, four hundred twenty-four thousand, six hundred twenty-two".