25240213 has 8 divisors (see below), whose sum is σ = 25522560. Its totient is φ = 24959760.

The previous prime is 25240207. The next prime is 25240277. The reversal of 25240213 is 31204252.

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 25240213 - 2¹⁷ = 25109141 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25240283) 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, 59743 + ... + 60163.

It is an arithmetic number, because the mean of its divisors is an integer number (3190320).

Almost surely, 2^25240213 is an apocalyptic number.

It is an amenable number.

25240213 is a deficient number, since it is larger than the sum of its proper divisors (282347).

25240213 is a wasteful number, since it uses less digits than its factorization.

25240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947.

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

The square root of 25240213 is about 5023.9638732778. The cubic root of 25240213 is about 293.3353063171.

Adding to 25240213 its reverse (31204252), we get a palindrome (56444465).

The spelling of 25240213 in words is "twenty-five million, two hundred forty thousand, two hundred thirteen".