25430013 has 48 divisors (see below), whose sum is σ = 44928000. Its totient is φ = 13547520.

The previous prime is 25429991. The next prime is 25430017. The reversal of 25430013 is 31003452.

It is not a de Polignac number, because 25430013 - 2⁵ = 25429981 is a prime.

It is a super-2 number, since 2×25430013² = 1293371122360338, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25430017) 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 47 ways as a sum of consecutive naturals, for example, 56413 + ... + 56861.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^25430013 is an apocalyptic number.

It is an amenable number.

25430013 is a deficient number, since it is larger than the sum of its proper divisors (19497987).

25430013 is a wasteful number, since it uses less digits than its factorization.

25430013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 519 counting only the distinct ones).

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

The square root of 25430013 is about 5042.8179622112. The cubic root of 25430013 is about 294.0687400005.

Adding to 25430013 its reverse (31003452), we get a palindrome (56433465).

The spelling of 25430013 in words is "twenty-five million, four hundred thirty thousand, thirteen".