25242435 has 20 divisors (see below), whose sum is σ = 45250128. Its totient is φ = 13462416.

The previous prime is 25242389. The next prime is 25242439. The reversal of 25242435 is 53424252.

It is a happy number.

It is not a de Polignac number, because 25242435 - 2¹⁴ = 25226051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25242399 and 25242408.

It is not an unprimeable number, because it can be changed into a prime (25242439) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30759 + ... + 31568.

Almost surely, 2^25242435 is an apocalyptic number.

25242435 is a deficient number, since it is larger than the sum of its proper divisors (20007693).

25242435 is an equidigital number, since it uses as much as digits as its factorization.

25242435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62344 (or 62335 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25242435 is about 5024.1850085362. The cubic root of 25242435 is about 293.3439139032.

Adding to 25242435 its reverse (53424252), we get a palindrome (78666687).

The spelling of 25242435 in words is "twenty-five million, two hundred forty-two thousand, four hundred thirty-five".