25140213 has 40 divisors (see below), whose sum is σ = 43443840. Its totient is φ = 14191200.

The previous prime is 25140197. The next prime is 25140217. The reversal of 25140213 is 31204152.

25140213 is a `hidden beast` number, since 251 + 402 + 13 = 666.

25140213 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 25140213 - 2⁴ = 25140197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57048 + ... + 57486.

It is an arithmetic number, because the mean of its divisors is an integer number (1086096).

Almost surely, 2^25140213 is an apocalyptic number.

It is an amenable number.

25140213 is a deficient number, since it is larger than the sum of its proper divisors (18303627).

25140213 is a wasteful number, since it uses less digits than its factorization.

25140213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 25140213 is about 5014.0016952530. The cubic root of 25140213 is about 292.9474020989.

Adding to 25140213 its reverse (31204152), we get a palindrome (56344365).

The spelling of 25140213 in words is "twenty-five million, one hundred forty thousand, two hundred thirteen".