25145155 has 8 divisors (see below), whose sum is σ = 34484832. Its totient is φ = 17242368.

The previous prime is 25145149. The next prime is 25145171. The reversal of 25145155 is 55154152.

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 25145155 - 2⁷ = 25145027 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 359182 + ... + 359251.

It is an arithmetic number, because the mean of its divisors is an integer number (4310604).

Almost surely, 2^25145155 is an apocalyptic number.

25145155 is a deficient number, since it is larger than the sum of its proper divisors (9339677).

25145155 is an equidigital number, since it uses as much as digits as its factorization.

25145155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718445.

The product of its digits is 5000, while the sum is 28.

The square root of 25145155 is about 5014.4944909731. The cubic root of 25145155 is about 292.9665964630.

The spelling of 25145155 in words is "twenty-five million, one hundred forty-five thousand, one hundred fifty-five".