25052155 has 4 divisors (see below), whose sum is σ = 30062592. Its totient is φ = 20041720.

The previous prime is 25052149. The next prime is 25052173. The reversal of 25052155 is 55125052.

It is a happy number.

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

It is not a de Polignac number, because 25052155 - 2⁹ = 25051643 is a prime.

It is a super-3 number, since 3×25052155³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505211 + ... + 2505220.

It is an arithmetic number, because the mean of its divisors is an integer number (7515648).

Almost surely, 2^25052155 is an apocalyptic number.

25052155 is a deficient number, since it is larger than the sum of its proper divisors (5010437).

25052155 is an equidigital number, since it uses as much as digits as its factorization.

25052155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010436.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 25052155 is about 5005.2127826897. The cubic root of 25052155 is about 292.6049687785.

The spelling of 25052155 in words is "twenty-five million, fifty-two thousand, one hundred fifty-five".