25034221 has 8 divisors (see below), whose sum is σ = 26449920. Its totient is φ = 23655408.

The previous prime is 25034209. The next prime is 25034227. The reversal of 25034221 is 12243052.

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 25034221 - 2¹⁵ = 25001453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25034227) 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, 7821 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (3306240).

Almost surely, 2^25034221 is an apocalyptic number.

It is an amenable number.

25034221 is a deficient number, since it is larger than the sum of its proper divisors (1415699).

25034221 is a wasteful number, since it uses less digits than its factorization.

25034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25034221 is about 5003.4209297240. The cubic root of 25034221 is about 292.5351300734.

Adding to 25034221 its reverse (12243052), we get a palindrome (37277273).

It can be divided in two parts, 2503 and 4221, that added together give a square (6724 = 82²).

The spelling of 25034221 in words is "twenty-five million, thirty-four thousand, two hundred twenty-one".