25453155 has 64 divisors (see below), whose sum is σ = 51932160. Its totient is φ = 10354176.

The previous prime is 25453123. The next prime is 25453159. The reversal of 25453155 is 55135452.

It is a happy number.

It is not a de Polignac number, because 25453155 - 2⁵ = 25453123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25453159) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39264 + ... + 39906.

It is an arithmetic number, because the mean of its divisors is an integer number (811440).

Almost surely, 2^25453155 is an apocalyptic number.

25453155 is an abundant number, since it is smaller than the sum of its proper divisors (26479005).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25453155 is a wasteful number, since it uses less digits than its factorization.

25453155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

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

The square root of 25453155 is about 5045.1119908284. Note that the first 3 decimals coincide. The cubic root of 25453155 is about 294.1579164588.

The spelling of 25453155 in words is "twenty-five million, four hundred fifty-three thousand, one hundred fifty-five".