25513006 has 8 divisors (see below), whose sum is σ = 38897064. Its totient is φ = 12547320.

The previous prime is 25513001. The next prime is 25513013. The reversal of 25513006 is 60031552.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25513001) 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 3 ways as a sum of consecutive naturals, for example, 104440 + ... + 104683.

It is an arithmetic number, because the mean of its divisors is an integer number (4862133).

Almost surely, 2^25513006 is an apocalyptic number.

25513006 is a deficient number, since it is larger than the sum of its proper divisors (13384058).

25513006 is a wasteful number, since it uses less digits than its factorization.

25513006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209186.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 25513006 is about 5051.0400909120. The cubic root of 25513006 is about 294.3882986916.

Adding to 25513006 its reverse (60031552), we get a palindrome (85544558).

The spelling of 25513006 in words is "twenty-five million, five hundred thirteen thousand, six".