25005622 has 4 divisors (see below), whose sum is σ = 37508436. Its totient is φ = 12502810.

The previous prime is 25005611. The next prime is 25005637. The reversal of 25005622 is 22650052.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×25005622² = 1250562263213768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 25005593 and 25005602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251404 + ... + 6251407.

It is an arithmetic number, because the mean of its divisors is an integer number (9377109).

Almost surely, 2^25005622 is an apocalyptic number.

25005622 is a deficient number, since it is larger than the sum of its proper divisors (12502814).

25005622 is a wasteful number, since it uses less digits than its factorization.

25005622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12502813.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25005622 is about 5000.5621683967. The cubic root of 25005622 is about 292.4236906155.

Adding to 25005622 its reverse (22650052), we get a palindrome (47655674).

The spelling of 25005622 in words is "twenty-five million, five thousand, six hundred twenty-two".