25235221 has 8 divisors (see below), whose sum is σ = 28273824. Its totient is φ = 22320720.

The previous prime is 25235219. The next prime is 25235227. The reversal of 25235221 is 12253252.

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

It is a cyclic number.

It is not a de Polignac number, because 25235221 - 2¹ = 25235219 is a prime.

It is a deceptive number, since it divides R_25235220.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25235192 and 25235201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25235227) 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, 30595 + ... + 31408.

It is an arithmetic number, because the mean of its divisors is an integer number (3534228).

Almost surely, 2^25235221 is an apocalyptic number.

It is an amenable number.

25235221 is a deficient number, since it is larger than the sum of its proper divisors (3038603).

25235221 is a wasteful number, since it uses less digits than its factorization.

25235221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62051.

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

The square root of 25235221 is about 5023.4670298510. The cubic root of 25235221 is about 293.3159664592.

Adding to 25235221 its reverse (12253252), we get a palindrome (37488473).

It can be divided in two parts, 2523 and 5221, that added together give a square (7744 = 88²).

The spelling of 25235221 in words is "twenty-five million, two hundred thirty-five thousand, two hundred twenty-one".