25455013 has 4 divisors (see below), whose sum is σ = 25528300. Its totient is φ = 25381728.

The previous prime is 25455007. The next prime is 25455029. The reversal of 25455013 is 31055452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22297284 + 3157729 = 4722^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 25455013 - 2⁹ = 25454501 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 (25455083) 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, 36120 + ... + 36817.

It is an arithmetic number, because the mean of its divisors is an integer number (6382075).

Almost surely, 2^25455013 is an apocalyptic number.

It is an amenable number.

25455013 is a deficient number, since it is larger than the sum of its proper divisors (73287).

25455013 is an equidigital number, since it uses as much as digits as its factorization.

25455013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73286.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25455013 is about 5045.2961260961. The cubic root of 25455013 is about 294.1650738179.

The spelling of 25455013 in words is "twenty-five million, four hundred fifty-five thousand, thirteen".