25455513 has 8 divisors (see below), whose sum is σ = 34322400. Its totient is φ = 16779488.

The previous prime is 25455473. The next prime is 25455517. The reversal of 25455513 is 31555452.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25455513 - 2⁶ = 25455449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25455517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47403 + ... + 47936.

It is an arithmetic number, because the mean of its divisors is an integer number (4290300).

Almost surely, 2^25455513 is an apocalyptic number.

It is an amenable number.

25455513 is a deficient number, since it is larger than the sum of its proper divisors (8866887).

25455513 is an equidigital number, since it uses as much as digits as its factorization.

25455513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95431.

The product of its digits is 15000, while the sum is 30.

The square root of 25455513 is about 5045.3456769581. The cubic root of 25455513 is about 294.1669998507.

The spelling of 25455513 in words is "twenty-five million, four hundred fifty-five thousand, five hundred thirteen".