25233621 has 8 divisors (see below), whose sum is σ = 38451264. Its totient is φ = 14419200.

The previous prime is 25233601. The next prime is 25233629. The reversal of 25233621 is 12633252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25233621 - 2⁵ = 25233589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25233591 and 25233600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25233629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600780 + ... + 600821.

It is an arithmetic number, because the mean of its divisors is an integer number (4806408).

Almost surely, 2^25233621 is an apocalyptic number.

25233621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25233621 is a deficient number, since it is larger than the sum of its proper divisors (13217643).

25233621 is a wasteful number, since it uses less digits than its factorization.

25233621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201611.

The product of its digits is 2160, while the sum is 24.

The square root of 25233621 is about 5023.3077747636. The cubic root of 25233621 is about 293.3097672470.

Adding to 25233621 its reverse (12633252), we get a palindrome (37866873).

The spelling of 25233621 in words is "twenty-five million, two hundred thirty-three thousand, six hundred twenty-one".