25242135 has 8 divisors (see below), whose sum is σ = 40387440. Its totient is φ = 13462464.

The previous prime is 25242131. The next prime is 25242137. The reversal of 25242135 is 53124252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25242135 - 2² = 25242131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841390 + ... + 841419.

It is an arithmetic number, because the mean of its divisors is an integer number (5048430).

Almost surely, 2^25242135 is an apocalyptic number.

25242135 is a deficient number, since it is larger than the sum of its proper divisors (15145305).

25242135 is a wasteful number, since it uses less digits than its factorization.

25242135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682817.

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

The square root of 25242135 is about 5024.1551528590. The cubic root of 25242135 is about 293.3427517924.

Adding to 25242135 its reverse (53124252), we get a palindrome (78366387).

The spelling of 25242135 in words is "twenty-five million, two hundred forty-two thousand, one hundred thirty-five".