25242534 has 12 divisors (see below), whose sum is σ = 54692196. Its totient is φ = 8414172.

The previous prime is 25242533. The next prime is 25242589. The reversal of 25242534 is 43524252.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25242498 and 25242507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701164 + ... + 701199.

It is an arithmetic number, because the mean of its divisors is an integer number (4557683).

Almost surely, 2^25242534 is an apocalyptic number.

25242534 is an abundant number, since it is smaller than the sum of its proper divisors (29449662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25242534 is a wasteful number, since it uses less digits than its factorization.

25242534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402371 (or 1402368 counting only the distinct ones).

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

The square root of 25242534 is about 5024.1948608707. The cubic root of 25242534 is about 293.3442973978.

Adding to 25242534 its reverse (43524252), we get a palindrome (68766786).

The spelling of 25242534 in words is "twenty-five million, two hundred forty-two thousand, five hundred thirty-four".