25032213 has 16 divisors (see below), whose sum is σ = 37229760. Its totient is φ = 16622928.

The previous prime is 25032209. The next prime is 25032223. The reversal of 25032213 is 31223052.

It is not a de Polignac number, because 25032213 - 2² = 25032209 is a prime.

It is a super-2 number, since 2×25032213² = 1253223375354738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25032223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (2326860).

Almost surely, 2^25032213 is an apocalyptic number.

It is an amenable number.

25032213 is a deficient number, since it is larger than the sum of its proper divisors (12197547).

25032213 is a wasteful number, since it uses less digits than its factorization.

25032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25032213 is about 5003.2202629906. The cubic root of 25032213 is about 292.5273084300.

Adding to 25032213 its reverse (31223052), we get a palindrome (56255265).

The spelling of 25032213 in words is "twenty-five million, thirty-two thousand, two hundred thirteen".