25598042 has 4 divisors (see below), whose sum is σ = 38397066. Its totient is φ = 12799020.

The previous prime is 25598021. The next prime is 25598059. The reversal of 25598042 is 24089552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 4977361 = 4541^2 + 2231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25597993 and 25598011.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6399509 + ... + 6399512.

Almost surely, 2^25598042 is an apocalyptic number.

25598042 is a deficient number, since it is larger than the sum of its proper divisors (12799024).

25598042 is a wasteful number, since it uses less digits than its factorization.

25598042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12799023.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 25598042 is about 5059.4507607052. The cubic root of 25598042 is about 294.7150058104.

It can be divided in two parts, 2559 and 8042, that added together give a palindrome (10601).

The spelling of 25598042 in words is "twenty-five million, five hundred ninety-eight thousand, forty-two".