25142235 has 16 divisors (see below), whose sum is σ = 42594336. Its totient is φ = 12620288.

The previous prime is 25142213. The next prime is 25142239. The reversal of 25142235 is 53224152.

It is a cyclic number.

It is not a de Polignac number, because 25142235 - 2⁶ = 25142171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25142239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49044 + ... + 49553.

It is an arithmetic number, because the mean of its divisors is an integer number (2662146).

Almost surely, 2^25142235 is an apocalyptic number.

25142235 is a deficient number, since it is larger than the sum of its proper divisors (17452101).

25142235 is a wasteful number, since it uses less digits than its factorization.

25142235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98622.

The product of its digits is 2400, while the sum is 24.

The square root of 25142235 is about 5014.2033265515. The cubic root of 25142235 is about 292.9552557020.

Adding to 25142235 its reverse (53224152), we get a palindrome (78366387).

It can be divided in two parts, 251 and 42235, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 25142235 in words is "twenty-five million, one hundred forty-two thousand, two hundred thirty-five".