25340013 has 16 divisors (see below), whose sum is σ = 39749760. Its totient is φ = 15899328.

The previous prime is 25340011. The next prime is 25340017. The reversal of 25340013 is 31004352.

25340013 is a `hidden beast` number, since 253 + 400 + 13 = 666.

It is not a de Polignac number, because 25340013 - 2¹ = 25340011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25340011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27145 + ... + 28062.

It is an arithmetic number, because the mean of its divisors is an integer number (2484360).

Almost surely, 2^25340013 is an apocalyptic number.

It is an amenable number.

25340013 is a deficient number, since it is larger than the sum of its proper divisors (14409747).

25340013 is a wasteful number, since it uses less digits than its factorization.

25340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55233 (or 55227 counting only the distinct ones).

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

The square root of 25340013 is about 5033.8864707103. The cubic root of 25340013 is about 293.7214145716.

Adding to 25340013 its reverse (31004352), we get a palindrome (56344365).

The spelling of 25340013 in words is "twenty-five million, three hundred forty thousand, thirteen".