25115155 has 16 divisors (see below), whose sum is σ = 33151104. Its totient is φ = 18149760.

The previous prime is 25115107. The next prime is 25115161. The reversal of 25115155 is 55151152.

It is not a de Polignac number, because 25115155 - 2¹⁷ = 24984083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (2071944).

Almost surely, 2^25115155 is an apocalyptic number.

25115155 is a deficient number, since it is larger than the sum of its proper divisors (8035949).

25115155 is a wasteful number, since it uses less digits than its factorization.

25115155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286.

The product of its digits is 1250, while the sum is 25.

The square root of 25115155 is about 5011.5022697790. The cubic root of 25115155 is about 292.8500399399.

The spelling of 25115155 in words is "twenty-five million, one hundred fifteen thousand, one hundred fifty-five".