25420013 has 8 divisors (see below), whose sum is σ = 25713888. Its totient is φ = 25128144.

The previous prime is 25420007. The next prime is 25420033. The reversal of 25420013 is 31002452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25420013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25419973 and 25420000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44870 + ... + 45432.

It is an arithmetic number, because the mean of its divisors is an integer number (3214236).

Almost surely, 2^25420013 is an apocalyptic number.

It is an amenable number.

25420013 is a deficient number, since it is larger than the sum of its proper divisors (293875).

25420013 is a wasteful number, since it uses less digits than its factorization.

25420013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25420013 is about 5041.8263555977. The cubic root of 25420013 is about 294.0301887954.

Adding to 25420013 its reverse (31002452), we get a palindrome (56422465).

The spelling of 25420013 in words is "twenty-five million, four hundred twenty thousand, thirteen".