25140013 has 12 divisors (see below), whose sum is σ = 26339040. Its totient is φ = 23992976.

The previous prime is 25140007. The next prime is 25140043. The reversal of 25140013 is 31004152.

It is not a de Polignac number, because 25140013 - 2¹⁷ = 25008941 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 (25140043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140358 + ... + 140536.

It is an arithmetic number, because the mean of its divisors is an integer number (2194920).

Almost surely, 2^25140013 is an apocalyptic number.

It is an amenable number.

25140013 is a deficient number, since it is larger than the sum of its proper divisors (1199027).

25140013 is a wasteful number, since it uses less digits than its factorization.

25140013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25140013 is about 5013.9817510637. The cubic root of 25140013 is about 292.9466252606.

Adding to 25140013 its reverse (31004152), we get a palindrome (56144165).

The spelling of 25140013 in words is "twenty-five million, one hundred forty thousand, thirteen".