25715235 has 32 divisors (see below), whose sum is σ = 50641920. Its totient is φ = 10850688.

The previous prime is 25715231. The next prime is 25715243. The reversal of 25715235 is 53251752.

25715235 = T₂₃₈₆ + T₂₃₈₇ + ... + T₂₃₉₄.

It is not a de Polignac number, because 25715235 - 2² = 25715231 is a prime.

It is a super-2 number, since 2×25715235² = 1322546622210450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25715231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8055 + ... + 10784.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 2^25715235 is an apocalyptic number.

25715235 is a deficient number, since it is larger than the sum of its proper divisors (24926685).

25715235 is a wasteful number, since it uses less digits than its factorization.

25715235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18867.

The product of its digits is 10500, while the sum is 30.

The square root of 25715235 is about 5071.0191283410. The cubic root of 25715235 is about 295.1640761104.

Adding to 25715235 its reverse (53251752), we get a palindrome (78966987).

The spelling of 25715235 in words is "twenty-five million, seven hundred fifteen thousand, two hundred thirty-five".